Generally a typo of butt sex, but rarely refers to when 69 is performed in an oddfashion and the 6 actually refers to the butt rather than the sexual organs.
Inserting a thumb into someones anus while also putting the middle finger of the same hand into their vagina thereby resulting in being able to lift the person up and carrying them around like a sixpack.
Boozer the beer lover was thirsty for a brewski while fingering a horny honey but didn't want to ruin the mood so used the sixpack butt attack technique on her and went to the kitchen to got a cold one.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.