Halo-hangover Share definition Flag The headache you get after staying up all night playing xbox or other game system. "I was playin xbox till 4 AM and then woke up at 9 with a halo-hangover" Halo-hangover by Country Boy Jim October 29, 2009 0 0 Get merch Get the Halo-hangover mug. Buy Now — $32.95 See more merch