Peep 1: Hey where is your roommate?
Peep 2: A girl called so he went to her house to do the nasty.
Peep1: Damn, that boy is addicted to booty calls.
Peep 2: Yeah, he is definitely a bootycallaholic.
Two or more people getting together, isolating themselves and fucking each others asses off for some period of time. All in the aim of getting a lot more skilled in said activity.
When someone of the opposite sex calls you up to "hang out over your/their place" (which in code means come over and have casual sex. Otherwise known as "shoplifting the pootie" -Jerry Mcguire.). It usually happens infrequently, without warning and normally occurs in the late night hours, resulting in hours of intense (if you're lucky lol) sex.
-OMG girl guess who called me out of the bluelate last night wanting to come over my house?
-Who?
-It was James! Girl I haven't talk to him in weeks, but I let him come over. It was a total bootycall, but it was fun!