A person (typically an artist) who is so humble they won't even accept compliments. They will often brush off any praise they get and say they opposite.
Person 1: Wow! Your art is absolutelyincredible!
Person 2: No it's not, it's awful, stop lying.
Person 1: I'm not lying, it's true!
Person 2: Yes you are, my art sucks.
Person 1: Stop being such a Humblebee
Expression used for a male or female that has not had sexual interaction with another person in a long time. Much like in old western films, tumbleweeds are a symbol of barren and dry land. Your nether regions feel much like such a land when in this physical state. Ergo, pissing tumbleweeds.
"Dude, I haven't had any action in like, months. I'm pissing tumbleweeds."