Fly-by 

When an person/animal is lying down & you run up to them, fart on their head, & leave the room.

"You should have seen the look on my cats face when I did a fly-by on him last night! He now twitches & I'm waiting for his left eyebrow to grow back! Priceless!"

"Dude, I did a fly-by on my mom yesterday! She didn't find it as funny as I did. Anyways, I can't come over, I'm grounded!"

Lassie: "Woof woof woof Timmy, woof woof fly-by woof, Fluffy, woof woof woof!"

Fly-by by NoLongerStevesMcQueen! October 20, 2014

Fly-By 

After you finger a girl's pussy, you do a covert sniff test to determine if it is safe to go down on her.

I did a fly-by before I tasted her pussy.

Fly-By by Boundaries Suck June 25, 2019

Fly-By 

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.

Fly-By by gofishgo January 4, 2007

Fly-By 

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.

Fly-By by pagsiscool October 15, 2009

fly by 

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...

fly by by itichie_nocanpo July 24, 2006

fly by 

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

fly by by jasondamailman December 31, 2007

fly by 

to run the fingers under your nose after fingering a girl to help make the crucial decision before going down on a girl.

my mate ste said she was a slut so i did a fly by to make sure it was fresh not fish.

fly by by idleian January 16, 2008