look up any word, like guncle:
 
1.
upgrade from a drive by ( drone checking out dudes in the middle east )
Fire control officer lets do a fly by . Yo doggs, its just like Los Angles take the wheel and squeezz the trigger...
by itichie_nocanpo July 24, 2006
 
2.
When you fly past someone and shoot them instead of the more common Drive-By.
Captain Bowen just pulled a Fly-By on them gunmen.
by gofishgo January 02, 2007
 
3.
When someone walks by and their primary focus at the time seems to be your fly/crotch area.
I think Jess is keen on me dude, she hits me with fly-by's all the time.
by pagsiscool October 15, 2009
 
4.
Done by a ricer after losing a race. It's the racing equivalent of a sucker punch. It goes like this: the race is over and the winning car is slowing down but the losing car just keeps going and flies by at (what seems to them, at least, to be) a great rate of speed.
I saw a Z hand a ricer his ass, who promptly did a flyby.
by ghost July 31, 2003
 
5.
Done by a ricer/meat head after losing a race. It's the racing equivalent of a sucker punch. It goes like this: the race is over and the winning car is slowing down but the losing car just keeps going and flies by at (what seems to them, at least, to be) a great rate of speed. The losing car will most likely resemble the sound of an amtrak train (meat head) or a weed wacker (ricer).

See also, loser flyby, ricer flyby, meat head, ricer
"Did you see that guy? He just did a flyby to me after I already smoked him.
by 572 October 23, 2007
 
6.
A quick and discreet "pass-through" of a nearby area to check on a repairman's progress, observe if certain persons are present, etc. Practiced by a considerate person who doesn't wish to hover, or when the actor prefers not to reveal his presence or disturb anyone until the appropriate time.
Customer: I wonder if the mechanic is done with my oil-change yet... think I'll do a discreet flyby of the garage and see what he's doing at the moment.
by QuacksO April 24, 2012
 
7.
To fart, then walk past an unsuspecting victim very close, preferably while in a small room (copy room, broom closet, etc...) and say "fly by". After a second or 2 the victim will know what you mean. You can even make plane noises on the approach and retreat for added effect.
Predator: Fly by!
Victim: What the hell? (breath in) awwwwwwwwww man!
Predator: Ha ha ha
by jasondamailman December 05, 2007