boo-boo vs bloomer

boo-boo and bloomer both are nouns.

Word	Noun	Adjective	Verb	Adverb
boo-boo	Yes	No	No	No
bloomer	Yes	No	No	No

As nouns, boo-boo and bloomer are synonyms defined as:

Other synonyms of boo-boo include blooper, blunder, boner, botch, bungle, flub, foul-up, fuckup, pratfall.

boo-boo (noun)	bloomer (noun)
an embarrassing mistake	an embarrassing mistake
	a flower that blooms in a particular way