Green’s Dictionary of Slang

(orig. US) to blunder, to make a mistake.

1961		L. Sanders Four-Year Hitch 70: Waiting for one to booboo and move [HDAS].
1978		Rolling Stone 26 Jan. 7: Boy, oh, boy did Chet Flippo boo-boo.
1999		(con. 1979) G. Bartlett ‘Marshalling Mayhem!’ 🌐 He was eventually found crouched in a corner down by the ops building half a mile away, trembling and mumbling to himself, totally convinced that he had somehow boobooed big time.