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.

When you eat dirt for the first time and leave your family to build a shack in the woods

ERP stands for Epic Role-Play, because who doesn't want to ERP at one point in our lives.

Expressing confusion or demonstrating your presence.

Sexy ass motherfucker. He'll write a story that will make you get horny, his hair will make you moist, his booty stands out from the crowd. Girls jump all over him and he is independent, want to go to the movies, Erps doesn't need you.
His penis is also unlike any BBC, people will fall all over him asking for his number. He has ambitions and goals and is respected, unlike other people who he doesn't aim to be.

The worst purchase tracking software ever made. It never really works. When you think it does......you've fucked something up.

A variation of the acronym RP (see: roleplaying). This is a form of one-on-one roleplaying performed by two advanced writers usually of the subjects romance, sappy, and melodramatic.