Alternate spelling: puss. Definition:
Someone who won´t try a trick just because they think they might get hurt. Stop being a pussy and just go for it!
Alternatively, it can be used to mean a vagina. The spelling puss cannot be used here. This is loosely used to mean "sex," as demonstrated here:
Dude, I'm gonna have to quit at like 5:00 and go get some pussy! NICE