boo-booing

Verb

boo-boo (third-person singular simple present boo-boos, present participle boo-booing, simple past and past participle boo-booed)

1. (childish, colloquial, intransitive) To make a mistake.
   • We boo-booed in giving the address of California Electric Railway Enthusiasts, and we realized it while mailing the last issue. Correct address is […]1952, The Ferroequinologist: A Journal for Students of the Iron Horse
2. (childish, colloquial, transitive, by or to young children) To defecate.
   • I went upstairs and Joseph, my husband, he came upstairs and found some boo boo on the floor. My little girl boo booed on herself downstairs as I was getting ready to clean her up.1974, The Southeastern Reporter

   Synonyms:

   poo, cack, choke a darkie, crap, defecate, do one's ease, ease oneself, do a number two, do one's easement, drite

See all 5 meanings of boo-boo