it's however you pronounce pussy but with a 🅱 so it depends on your accent
to me it's "buh" as in "book", and not "buh" as in "bus"
in IPA terms:
bʊs.i (not bʌs.i)
it definitely isn't boo-see unless you pronounce pussy like poosey
gimme the gimme the gimme the boosey, boss
Byoo see
For some reason I watched his animal court show. It was a fever dream.
Buh-see.
UwU
Confirmed with my adorable, beautiful, amazing fiancé: buh-see. Thank you for coming to my ted talk 
Boosh-Wa-Jeeeeeeee
Buc-ees
la bucci 
Boosie Badazz
ˈbʊ-si
Bü
Bow-shee.
Boh-seh
I thought it was more like "Boo-zhee"?
De-boos-ay
yes
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