Loosher 

When you are out in a pub/bar/club with your friends and one of your friends is drinking very slowly, you call him a Loosher.

Mate,c'mon drink up you Loosher, wanna get the next pint in.

or

Loosher! (whilst pointing)

Loosher by jpk88 March 6, 2009

looser 

A looser is a loser who can't spell "loser".

Moron: "Hey man, you are teh looser!"
Guy: "It's spelled 'loser' you uneducated bastard."

looser by baconbits September 10, 2005

Looster Booster 

A 14 year old Youtuber from British land. Posts gaming videos everyday. He probably won’t get 1,000 subscribers but hopefully. He makes videos with gay people and nice people. Make sure to subscribe to him

Yo guys, what’s going on, welcome back to another video! Today we will be playing Fortnite with Aiden!

Aiden: your so trosh Louis

Looster Booster: (silently laughs but is actually sad inside)

Looster Booster by Cardboard_Eggs June 9, 2019

looser 

The opposite of "tighter,"; more loose; less restrained.
Often confused with "loser," a word describing a person that nobody likes, by the idiots who wrote the other two definitions for this word.

Amanda: My pants are looser than they were last week!
Megan: Wow! I don't give a fuck!

looser by schnickerdiddlemytoes February 19, 2011

looser 

a looser is a loser that cannot spell loser
(pronounced the same as loser)

you are a looser

looser by A sniper who plays on 100 ping February 26, 2019

Booster Looster 

The opposite of Looster Booster. The channel has the same name but switched around. Run by Johnny Saiden aka DaMightyBoss. He’s most famous for posting the video “Cue Aidens Hairline”, which was sadly taken down. Sub to Booster Looster

Joe: Hey have you watched the video cue Aidens hairline?
Mama: No. Who made it?
Joe: This channel called Booster Looster. You should sub to him.
Mama: Aight

Booster Looster by Cardboard_Eggs November 5, 2019

Looser 

Looser - (n.) 1. Internet troll that calls others a loser on a public message board, but can't spell it. 2. (adj.) More loose.

Ex : "yeah you stoupid ain not scienteist even but you think you are. You are a looser."

Looser by Yaybob January 23, 2011