Deficicate

When you take a crap on your partner/lover

Ayo last night I deficicated on my girlfriend last night

self-deficating humor

When you laugh so hard you shit yourself.

John's self-deficating humor was so potent he cleared the room.

Defication station

Any toilet, urinal, sink or bathtub thats good and clean enough to to take an emergency shit in.

Omg Ive gotta shit so bad. Any defication station will do at this point.