Avocadosmash is an sexual act in a very high tempo and a short time frame, usualy in a shady enviroment.
Person 1:"Did you get to smash yesterday"?
Person 2:" Yes, but we had so litlle time that we only got to take an avocado smash in the alley behind Walmart"
Person 1: "yea that sucks, but at least you got to smash"
Type of shit which generally occurs after a black coffee or a night of drinking a dark beer (i.e. Guinness), wherein all sides of the porcelain are covered with a layer of said smash.
Lex enters room w/a slightly distinguished look.
Lex: "Man, you should've seen what just came out of me. . .hotsmash, yeah, the walls were covered."