1. A state of tidiness maintained by the average straight, single guy. It is generally acceptable to other heterosexual men, but fails to meet female standards.
2. To quickly hide trash and wipe up spills before visitors show up. A superficial clean-up.
James: Wow Ed, you clean up your place?
Babs: Yea, like maybe a year ago.
Ed: Hey, it's bachelor clean.
Billy Bob knew Daisy was coming over, so he gave his bachelor pad a bachelor clean.