extracourse 

Sex in the bottom. ie. anal lovemaking.

"I heard that Tony and Cheryl had extracourse on their second date"

"What, you mean like George Bush and John Howard? They must really, really like each other!"

extracourse by moltencore October 1, 2007

Extercourse 

Term used to describe sex between people that hate one other. Extercourse in is no way related to make up sex.

1: "You stupid bitch, you popped my car tires!"
2: "Well you killed my dog, faggot!"
(spontaneous extercourse engages)

Extercourse by Cola J March 12, 2008