Definitions by Kenny_boy

RPM 

Ring Piece Marks

The line of sweat someone gets on their clothing down the crack of their arse, usually during a gym workout

Sue: Woah that guy is really going for it on the treadmill!

Sarah: Yeah he's cute, just a shame about the RPM

RPM by Kenny_boy June 11, 2009

PPC 

Paranoid Phone Check

When you and your mate are talking about someone and you then have to check your phone just in case you are ringing the person you are talking about and they have heard what you have said.

Sarah: Julie is definitely putting on weight

Sue: I know, she's been eating like a pig lately

Sarah: Hang on, where's my phone? PPC!

PPC by Kenny_boy June 11, 2009