Sten do 

It is a combination of a Stag and Hen do. True story. Newcastle is a great sten do location.

Bob: What the fuck is a sten do?

Greg: It's when people don't want strippers or to get shitfaced so they have a super PC party.

Sten do by Royce aka 'screech' September 18, 2019

Sten do 

A mixed sex 'hen/stag' do for gay couples.

It's jussy's Sten do this weekend and were going to get completely smashed!

Sten do by H2thehizzo October 21, 2010

stendo 

an extended magazine increasing the capacity of a glock from 19 to 30

Ty rolls around the block with the stendo hanging out his draco

stendo by nick123598 January 23, 2018

Stendo 

An extended clip

"Damn lil deon got that stendo, watch out!"

Stendo by Hellboy Hippie March 10, 2018

Stendo 

Noun: An extended or larger version of a firearm magazine, most often belonging to Glock series pistols.
(although it can apply to any detachable firearm magazine, including for rifles, pistols and shotguns)

Check out Bobby, he's got himself a Stendo on his Glock!
Just bought myself a new Stendo for my Kalash.

Stendo by Mr Hazmat September 1, 2025