dude, I pissed in that beer I gave you. I whispered it in your girlfriends ear and she was into it, she's probably the one that showed you two girls one cup.
I was recently informed about "the birds nest". This is the act of putting wadded up toilet paper into the toilet bowl pre poo in a birds nest shape and then poo'ing in it, the reasoning in this was to prevent toilet water blow-back on the poo'er.