jacking off
When Spider-Man rubs his wrist with his hand until a white sticky substance comes out, which he uses to swing around like a lunatic. If he doesn't do this, he can't save the day and everyone dies.
"I just jacked off before fighting the Green Goblin, I was that desperate.", Peter Parker
"I did my thing and now I can swing to the top of the Empire State Building.", Spider-Man
"If I don't jack off, I'll fail my math test and my uncle will die.", Peter Parker