"Truth Serum Drunk" Barney gives the answer "Yes, but not while she was Secretary of State" and "Yes, but not while SHE was Secretary of State" to two questions we don't hear. The first is a reference to Madeline Albright, the ongoing joke carried on from "The Yips" and "The Bracket", while the second is meant to make you wonder, is he referring to Condoleezza Rice or Hillary Clinton, as they are the only other two women to hold the position.
"Jabba Drunk" Barney says "Aggle Flagged Klabble. Wubby Flappy Snurp.." a line from the Mo Willems Children's Book "Knuffle Bunny"