Flysack 

The general term for a fly's nut sack.

Did you see the size of that Flysack on that horse fly?!

Flysack by Snack O' Matic August 27, 2009

Flyback 

making death threats on Efnet since 1997

Flyback by Anonymous September 5, 2003

flyback 

highly medicated little psychotic fucktard on IRC. can't stay unbanned in any channel he ever joins for more than 5 days.

dude, you are such a Flyback!

flyback by ScaryFast September 3, 2003

flosack 

When someone quickly sucks PPs for money.

Brian: Hey everyone! I'm giving flosacks for only 99 cents!
Dylan: That's like, totally gay dude.

flosack by okkmissgirll January 29, 2021

flyback 

someone who enjoys saying "canuck" every 1.2 seconds.

<flyback> CANUCK!
<flyback> CANUCK!
<flyback> CANUCK!
<flyback> CANUCK!
<flyback> CANUCK!
* Smish sets mode: +b *!*@12-226-219-161.client.attbi.com

flyback by >:( September 3, 2003

flyback coil 

A high-voltage transformer used primarily in switching power supplies and controllers for CRTs. It is named after the surprising effect that it has on the human body when you accidentally gets too close to one.

My old TV's flyback coil finally died.

flyback coil by FartyMcCrablice October 11, 2013

flyback 

Noun. A small piece of tobacco or cannabis that enters the mouth while smoking. Usually occurs with poorly hand-rolled cigs/spliffs.

Gargh *spits* God-damnit who rolled this crap?Im getting flybacks here

flyback by Jeff24 August 30, 2005