it's the adjective form of ish, so it basically means shitty, but for ish. the word also annexes an s.
waiter: "How was your meal tonight?"
person: "kidding me? that was such an isshy steak"
The suction created in the vaginal or anal region during intercourse. This physical phenomenon will not occur with small cocks. It, in fact, takes a considerably large one (typically) to accomplish this feat. Other items can be used to accomplish this doe.
Jenny-"So, how was Paul last night?"
Laney-"He was fine."
Jenny-"Was he big enough for any fucktion?"
Laney-"Please, he wasn't nearly big enough... fortunately he has other ASSets that compensate for his small ass dick."
Jenny-"Damn, it's hard to find someone big enough for that doe"