Playing Super Smash Brothers by oneself for an extended period of time. Not to be confused with its much, much stranger homonym smashturbation.
Your smashterbation habits are getting out of control, Andy. Yes, we know you can beat the computer.
10👍 3👎
Masterbating while extremely intoxicated
Smashterbate - I don't remember smashterbating last night becuase I blacked out, but I'm sure I enjoyed myself
7👍 1👎
To pleasure oneself until pain sets in
Kelly smashterbated herself to the thought of other girls smashterbating.
63👍 20👎
As used in "Deadpool and Wolverine"
When using 2 Hulk-Hand toys together to ravish ones penis.
I'm sorry you caught me Smashterbating in the lobby.