This is a boy who tells you that he loves you, but really he just wants to lead you on and break your heart. This boy will tell you he loves you and then he will go after your friend, just to make you wish that you were closer to him. Your friends will usually know when a guy is a backstabbing loser, but the backstabbing loser will put up a charade that makes you fall more in love with him and then he will rip your heart out and throw it in the dirt. Your friends will warn you about this person, but you will ignore them and go after him and then regret it immediately.
Girl 1" Wow Marcus is such a backstabbing loser, I can't believe that he told you he loved you and then went after that other girl."
Girl 2 " I know right he is such an awful person.
Girl 2 " I know right he is such an awful person.
by girlwhohasbeenheartbroken May 5, 2018

"I'm just going out into loser space. Someone's forgotten which Post-It note they wrote their password on."
by entrails May 25, 2008

One who is in the process of losing in a fair competition, but ends it before it can be completed and/or blames it on other sources.
Ex) “oh darn, i guess neither of us win because there was lag, I guess we can’t do it” “whatever, you are just a sore loser” “nu-uh, you don’t even know the definiton of a sore loser”
by SoreWinner January 25, 2018

by btuszka January 10, 2022

A Meme Loser is someone that posts endless amounts of shit, stolen memes, because they're far too stupid to come up with their own. Can be found dwelling in Florida, cowering in the garage from the wife and her flip-flop. When not hiding from the wife, they can be found in truck-stop glory holes, sucking cock in return for memes.
Josh has spent all weekend getting high and stealing other people's work again; he's such a Meme Loser
by CassieWin February 11, 2023

The Loser's Manual is really a User's Manual one receives when making the purchase of an electronic gadget, or a new piece of lawn equipment, power tool, etc. The difference is that real men never consult the User's Manual.
Guy #1: Hey Kyle, I just bought this weed whacker, but can't figure out how to install the fishing line, can you hand me the User's Manual?
Guy #2: You mean Loser's Manual don't you Jeff?
Guy #1: Why do you call it the Loser's Manual Kyle?
Guy #2: 'Cause only a Loser would have to use it, real men never consult the User's Manual.
Guy #1: I see, well in that case let's go get a beer.
Guy #2: Now you're talking.
Guy #2: You mean Loser's Manual don't you Jeff?
Guy #1: Why do you call it the Loser's Manual Kyle?
Guy #2: 'Cause only a Loser would have to use it, real men never consult the User's Manual.
Guy #1: I see, well in that case let's go get a beer.
Guy #2: Now you're talking.
by ReaperB October 26, 2013
