(to, used as a verb), this phrase is said to someone who is doing something meaningless, retarded and idiotic (not to mention potentially dangerous) and they are intelligent enough to know better.
a father comes home from work; his son is in his room shaving the hair off his own balls.
Father: son, you idiot, what are you doing? is this f-sag? i didn't tell you how to, or teach you, to shave your balls. Pigs don't fly.
Son: dad, this is not f-sag. yesterday after class, we went to her house and I had sex with my girlfriend Anna and when she gave me a blowjob and got to my balls, she complained how hairy they were. And yes dad, pigs do, and will, fly, if I deem it appropriate to attach balloons to them.
Father: so okay this is not f-sag, but roflmao anyways.
when a man shaves another mans rod for him
antonio was meat shaving josh, when josh's boyfriend merv walked in, merv then stomped josh's ass and now are on non speaking terms.
A danish way of saying "Now that jobs done"
Now that goat is shaved
A shaving made from a rubber when it is being used
When a rubber is being used shavings come of it"stop eating those rubber shavings charles,"
A social stigma among horny men promoting the preference of trimmed lips over bushy beavers. Also known as VSB.
Due to the wide-spread Vaginal Shaving Bias among her clients, Sharon had no choice but to de-fluff her muff or de-fluff her career.
when someone has a bad haircut or when somebody says something dumb smh
bro I got a 0% on my test shave my head smh