One of mine said "You gonna finish that shawarma?" but I clearly can't use that on the return as it'd look like an avengers reference. My all time favorite was "Keep it together Shalice!" though.
I can't believe I forgot until now, but that Keep It Together, Shalice reference reminded me of the only other time I'd modify a toon's battlecry for a particular cutscene (besides the BAF).
Personally, I never turned down a chance to smack around ol Frostfire. He just seemed so deserving of it. Anyhow, in the middle of his cutscene there was a point when he'd turn around and blast one of his own Outcasts and shout "Shutup you moron!". At which point you'd see my bubble pop up on the side "Yeah!Let the Moron King speak!"
It was funny. Really, it was! Guess you had to be there