Top Definition
ERP stands for Erotic Role-Play. Role-Play in this definition refers to the typing RP done in video games, chatrooms and forums.

ERP is a role-play with little plot besides the quick sex scene between characters. There is no consequence and no long term story behind it.

ERP is basically RP that is rated X.

The term is often confused with MRP, but it is very different.
Would you like to do an ERP? I'm really in the mood.
by Villanite December 28, 2007
16 more definitions
The worst purchase tracking software ever made. It never really works. When you think it've fucked something up.
I'm gonna make a software that should help make tracking purchases but in reality will cause people to not be able to finish their regular work. It shall be called ERP!
by user458237 November 18, 2010
To become sick.
That awful smell just makes me want to erp!
by Ette July 11, 2003
score * badonkadonk ^ 2
that was an erping good time
by kringle December 24, 2002
Acronym of Extra Recticular Probing, meaning sexual intercourse of the anal variety.
I'd love to give her/him some ERP!
by Mat Hayward May 26, 2006
A sound usually pertainign to a query, question, or just being used as an incomprehensible noise to confuse others around you
Guy#1: So, did you see that homeless man? I see he is fond of ketchup pakets.
Guy#2: Erp?
by ThatTreeOutside March 28, 2003
Sound of a car stopping in a cartoon
that luxory car didnt make the erp sound when it stopped... oh wait, he forgot to use the brakes and hit the sidewalk, my bad
by SteveF March 25, 2003

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