Gravatbu!
This word is so funny to me! LOL.
It was featured in "Still Mom" (S1E21) (While Bill and his friends were playing Scrabble) & "Still Admiring" (S3E18) (When Bill and Brian are fighting over the computer and send the random message to Lauren who was pretending to be Brian's tutor)
"Do you even remember what you came here to find?"