What is Drought Buster?
1.
A person you normally wouldn't have sex with but whom you decide to bang anyway because you haven't had any for too long.
i.e. The person who breaks the dry spell.
"I heard you got busy with Sandra. That girl is suspect. What were you thinking?"
"Yeah, she's not quality. I'm not proud, but what can I say? She was my drought buster."
See