Mostly said by fans of Fall Out Boy after when Patrick couldn't reach the mic, Pete Wentz attempted to lift him up to it
Patrick: Er, and thanks to this mic stand for being really tall
Pete: *Lifts Patrick up*
Patrick: Thanks Pete
Since then, Fall Out Boy fans will randomly blurt out THANKS PETE or instead of just saying thanks. Now thank Pete for this definition

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)

A Fall Out Boy reference created when Patrick Stump was too short (and is STILL to short) to reach his microphone. Pete Wentz attempted to lift Patrick up, resulting in the forever reference "Thanks Pete!"