1. boo hoo - Verb
2. boo hoo - Interjection
The sound of crying.
"Boo hoo!" cried Lisa after she misplaced her saxophone.
(used ironically, spoken as an ordinary word) it is not worth crying about, an expression of contempt
So you broke it. Boo hoo! Get a grip, and clean up the mess.
boo-hoo (third-person singular simple present boo-hoos, present participle boo-hooing, simple past and past participle boo-hooed)
Alternative form of boohoo.
boo-hoo
Did I feel a bit boo-hoo about this? Source: Internet
Somber and still as the grave, it’d be more boo-hoo than boo. Source: Internet