just rolling over from last night or what?

good times! thx so much for all the hospitality!
if i rolled over, i would fall off the mat into the pool!
missed last night... bet it was ser biz!
Ssia!!
I need a translation on that one. I don\'t think I can even figure out what that stands for.
Secret Society Invite Association.
Duane has this weird inside language with his close friends. I dont get it, really...