4pac 

1) 4pac is a mathematical term used when installing devices that use a magnetic field sonar. This term is the result of the radius of the sonar divided by half its diameter when interfering with a solid object, or less depending on the inches the object has in the respective dimensions. Multiple 4pac solutions can be found within one equation of a device.

2) A reference to a Black and White filtered image of Tupac Shakur with the number “4” above his forehead

I just finished calculating the 4pac for that guy down the street.

4pac by KD5657 August 13, 2021

4pack 

when you insert 2 fingers in her pussy and your thumb in her arse... like when you pick up a 4 pack of beer.

'i picked that bird up last night like a 4pack,to get her on the bed'...

4pack by rouges January 22, 2010

4pack 

The name belonging to the exreme expert who plays videogames. Found on Blizzard's Battle net on U.S West as 4pack, and has the original "fourpack"for hotmail.com.

Charles Chan, who wishes to start a secret society by which sets animals on fire for the entertainment.Not just some kind of silly burning, but includes aquatic mammals such as whales and dolphins squealing in pain as their bones burn to ash before them, due to Napalm.

4pack by Charles Chan May 13, 2004