My favorites.... let's see:
From F.3.A.R. "Psychic Psychic bendy spoons."
From CoJ: Bound in Blood "And no, for some reason I can't pronounce JUAREZ any other way."
From No More Heroes "God knows what would happen if you spread Branston Pickle on No More Heroes, probably the universe would end. AND IT WOULD BE AWESOME."
From Shadow of the Collosus "There's nothing else like it and it's just damn good. Damn damn good good damn good damn damn...... good."
and from Catherine "There's a moral choice type thing where in you answer questions based on your own expansive experience in relationships (snort)."
Did not quite get that last one right. Either way, those generally had me on the floor.