Bumsick Share definition Flag Getting so drunk that when you wake up in the morning, you are violently sick out of your arse "I was so bumsick last night, i woke up this morning and felt like my arsehole was a fire hose" Bumsick by The Tudor February 9, 2012 0 0 Get merch Get the Bumsick mug. Buy Now — $32.95 See more merch