clean as 

Often used in skateboarding.
To do something with great ease or finesse.

Dude, that nollie frontside heel was clean as!

clean as by Jay Butler February 26, 2004

clean as your mother's reputation

Basically, this term means that you can't get something any cleaner (or purer) than it is. It's also meant as a compliment by saying that somebody's mother is not a skanky whore or streetwalker. This term appeared in the young adult edition of the novel adaptation of the 1979 sci-fi thriller"Alien".

George the janitor tidied up the restroom so well it's not simply spic and span, it's as clean as your mother's reputation.

clean as your mother's reputation by I Saw U2 Live Twice May 17, 2007

Clean as a Hounds Tooth

This is a saying used by people in the southern U.S. to imply that a person or organization is without corruption or completely honest.

Buford: I hear that the 34th Precinct of the Atlanta Police Force has Cops on the take.
Bubba: No that's not true,I hear that they are Clean as a Hounds Tooth.

Clean as a Hounds Tooth by Mojo maniac October 9, 2008

clean as fuck 

something so amazing

That fight was clean as fuck.

clean as fuck by srqking December 16, 2008

clean as your mother's reputation

deadset my heart and soul, clean as a kiwi cranny-bum

choice bro,now that's as clean as your mother's reputation

clean as your mother's reputation by S & A June 5, 2007

Clean as a slip 

When you take a big shit and you go to wipe but when you look at your toilet paper after the wipe there is so shit streaks on it. So your butthole is as clean as a white slip.

my butthole is clean as a slip

Clean as a slip by cumball January 7, 2023

Clean as a whistle 

When you wipe your butthole after taking a dump and the toilet paper comes away stain free.

Hey man, i just took a huge dump but i was too tired to wipe my ass, good thing i was clean as a whistle

Clean as a whistle by slippychunks September 29, 2010