boo-boo face n. a pout or pouty facial expression; moue; boo-boo lip, an out-thrust lip. Editorial Note: Probably from the facial expression children make when they have a boo-boo ‘minor injury.’ (source: Double-Tongued Dictionary)
Further reading
It’s hard to imagine now, but there was a time when people disagreed over the best word to use when answering the phone. Alexander Graham Bell suggested answering with ahoy! but Thomas Edison was partial to hello! A fascinating new book about...
A tattoo artist in Wilmington, North Carolina, is debating the correct pronunciation of labret, a piercing just below the lip. The best choice is to put the stress on the first syllable, which should make it have assonance more or less with tablet...
actually…its more of a i smell boo-boo face. you know like you just smelt crap. i.e boo-boo.