get up outta that
What does get up outta that mean?
Expression of friendly disbelief — 'no way!', 'you're joking!', 'go on outta that'. Used when someone tells you something surprising, gives you a compliment you want to deflect, or says something a bit cheeky. Warm, not aggressive — closer to playful dismissal than a real telling-off.
Origin
Hiberno-English colloquialism. Got a major nationwide boost from the Rubberbandits' 2010 hit 'Horse Outside' and from comedy shows of the 2010s, though the phrase predates both by decades in everyday speech.