It means a cute nickname for the most amazing person you love.
You're my snoogali boo boo
A dorky human named Mathew Milho
"Wow, you're such a boo lip!" Said the amazing and awesome women, Danielle.
When a friend of yours has recently started dating another, and is suddenly unable to attend and social gatherings because he is with said boo.
"What happened to Jim?" "He got a case of the Boo Flu, we won't hear from him until he is single again"
When you and your significant other are sharing a cigarette but they keep forgetting to pass it back to you for your turn.
Pass that cigarette back (man/woman), quit being a boo-gart.
When your girlfriend bursts into tears over the accommodations you've selected for your romantic getaway, you've booked a boo hoo hotel.
"CeCe saw the stains on the carpet and sheets and felt herself tear up. We both understood without a word. I'd picked a boo hoo hotel again, and no one was ever going to get lucky in that dump."
(Fat bus) a way to describe a bitch, asshole and or someone you hate