Basically HBH stands for heartbreak hotel. It was derived from a song and is commonly used when heartbreak happens. When that does happen all you gotta do is check-in to the heartbreak hotel.
Me: yo guys im so depresed
Dave: wsup g
Me: Time to check in hbh
Hbh stands for HeartBreak Hotel, which comes from a song. It usually refers to a person being rejected by his/her crush. It was invented by a girl who likes to use acronyms for almost any words.
Catherine: I'm checking in hbh tonight.
David: HAHA. Have a GOOD sleep.
Catherine: w/e f u
Meaning "Hella butthurt" or getting your feelings extremely hurt, being offended or getting all bent out of shape because of something petty or stupid.
James was HBH when Thomas commented on his hair.
(Noun.) The preferred, abbreviated form of Hobag Hottie, a term that applies to skankily attractive individuals (namely of the female sex).
Katya: Did you see that low cut shirt Allie was wearing today?
Alana: Yeah, she is such an HBH!
Person 1: something something HBH
Person 2: WOooah!!