Fuck up Share definition Flag Australian slang meaning "shut the fuck up" mostly used with the word "cunt" to make "fuck up cunt"mainly used by bogans and crackheads "your Mum is a fucking slut you disabled fuck!""fuck up cunt!" Fuck up by Sodanic April 23, 2019 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug