Glossary: Gym Slang
The informal vocabulary of the gym floor, decoded, so you know what people are talking about.
Last updated: 1 July 2026
Overview
Gym culture has its own vocabulary, most of it never explained to newcomers. Here it is.
Quick Answer
Common gym slang includes PR for personal record, DOMS for delayed onset muscle soreness, the pump for the temporary fullness after training, spotting for assisting someone on a heavy set, and working in for sharing equipment between sets.
Abbreviations
| Term | Meaning |
|---|---|
| PR or PB | Personal record or personal best |
| DOMS | Delayed onset muscle soreness |
| 1RM | One rep max |
| RPE | Rate of perceived exertion |
| RIR | Reps in reserve |
| AMRAP | As many reps as possible |
| EMOM | Every minute on the minute |
| BW | Bodyweight |
| DB and BB | Dumbbell and barbell |
| OHP | Overhead press |
| RDL | Romanian deadlift |
| SLDL | Stiff leg deadlift |
| PPL | Push pull legs |
| GVT | German volume training, 10 sets of 10 |
Gym floor etiquette terms
| Term | Meaning |
|---|---|
| Spotting | Assisting someone through a heavy or failed rep |
| Working in | Sharing a station with someone between their sets |
| Curling in the squat rack | Using a rack for an exercise that does not need it |
| Re-racking | Returning weights to where they belong |
| Dropping in | Joining a station without asking. Do not |
| Half rep | A rep through an incomplete range of motion |
| Mirin | Admiring, usually said ironically |
Training culture terms
| Term | Meaning |
|---|---|
| The pump | Temporary muscle fullness from blood and fluid during training |
| Newbie gains | The rapid progress of the first six to twelve months |
| Noob gains | The same thing |
| Ego lifting | Using more weight than you can control |
| Gainz | Muscle or strength progress, deliberately misspelled |
| Cutting | Losing fat deliberately |
| Bulking | Gaining weight deliberately |
| Dirty bulk | Gaining with little regard for food quality or rate |
| Lean bulk | Gaining slowly in a small surplus |
| Recomp | Recomposition, gaining muscle while losing fat |
Body and physique terms
| Term | Meaning |
|---|---|
| Natty | Training without performance enhancing drugs |
| Enhanced | Using performance enhancing drugs |
| Cut or shredded | Low body fat with visible muscle definition |
| Bulky | Carrying noticeable muscle mass |
| Skinny fat | Low muscle mass with relatively high body fat |
| Toned | Visible muscle with relatively low body fat |
| Vascularity | Visible veins, largely a function of low body fat |
| Taper | A wide upper back narrowing to the waist |
Things worth knowing as a beginner
- -Working in is normal and expected. Ask politely, and let people finish their set first.
- -Spotting should be arranged before the set, including how many reps of help are wanted.
- -Re-racking weights is the one piece of etiquette everyone genuinely cares about.
- -Headphones signal that someone is not looking for conversation.
Nobody is watching you as closely as you think. Almost everyone is looking at their own phone between sets.
Common Mistakes
| Confusion | Clarification |
|---|---|
| The pump means muscle growth | It is temporary fluid, gone within an hour |
| Newbie gains last forever | Six to twelve months, then progress slows sharply |
| Toned is a distinct training goal | It means muscle plus lower body fat |
| Natty is always accurate | Physiques presented as natural often are not |
Frequently Asked Questions
What does PR mean?
Personal record, your best ever performance on a lift, whether that is weight, reps or both.
What is the pump?
The temporary swelling of a muscle during and shortly after training, caused by blood and fluid accumulation. It feels good and disappears within an hour.
What are newbie gains?
The unusually rapid strength and muscle gains of the first six to twelve months of training, driven mainly by neural adaptation and untapped potential.
What does it mean to work in?
To alternate sets with someone else on the same equipment. It is standard practice; just ask between their sets.
Sources
NHS exercise guidance - https://www.nhs.uk/live-well/exercise/
National Strength and Conditioning Association - https://www.nsca.com/