Bughouse is the same as crazyhouse, except it's played with 4 players.
What's crazyhouse you ask?
Crazyhouse is the same as bughouse, but played with only two players.
Also google is less complicated, and much faster, than posting in a forum, so I don't get it.
https://en.wikipedia.org/wiki/Bughouse_chess
Can someone describe to me what Bughouse is?