| Acronym | Meaning |
 | TTR | (US) Tattoo-to-Tooth Ratio (Dirtbag Ratio) |
| RUTUS | Rounding Up The Usual Suspects - Ordering A Set Of Tests For A Given Set Of Symptoms |
| CTD | Circling The Drain (Close To Death) |
| DSP | Dumb Sh*t Profile |
| BBLS | Belly-button Lint Sign - Male, Middle-aged, Overweight And Hairy (an Umbilicus That Looks Like The Lint (fluff) Trap In A Tumble Dryer Is Most Common In Overweight, Hairy, Older Men). Known As Belly-Button Fluff Sign In The UK. |
| KSS | Kidney Stone Squirm - A Spot Diagnosis In A&E |
| KFO | Knock The F*cker Out (patient Either Obnoxious Or Screaming In Pain) |
| SHS | Sullen, Hostile, Stupid (often An Inner City Drug/alcohol Addict) |
| BBB | Blood-Brain Barrier - Surgical Drapes |
| NFS | Neuro-faecal Syndrome - Sh*t For Brains |
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