Broke it with a sammich

(1)A term used to allay blame onto another person, usually for or with no good reason.

(2)To do something impossible/highly unlikely.

(1)
Mother: How did my vase get broken?!?
Son1,2: Dunno chief!
Mother: Well someone better 'fess up before I open up a can o' whoop-ass.
Son 1: Alright! Son 2 broke it with a sammich!

(2)
Guy 1: *quintuple backflips off a building on rollerskates*
Guy 2: Dude! You just broke that trick with a sammich!