When a friend or bro is responsible for telling his friend or bro what he said and did the night before, when the subject being observed is presumably 'shit-faced' or 'fucked up'.
A Designated Observer may tell his bro about a conversation he had with an attractive female he was trying to 'score with' or 'tap'.
by therealbrofessor February 21, 2010
Get the Designated Observermug.