A snitch is someone who has a reputation for telling on people constantly. They are unpopular in grade school. If you plan on being one, brace yourself for a large impact of hatred.
Grayson: What are you doing?
Luke: I'm on my computer.
Grayson: Teacher! Luke's on his computer!
Luke: Dude, stop being a snitch!
Luke: I'm on my computer.
Grayson: Teacher! Luke's on his computer!
Luke: Dude, stop being a snitch!
by BleachedSpaghettiYT December 5, 2017
Get the Snitchmug. by Randomguywithnothingbettertodo March 11, 2021
Get the Snitchmug. 
Someone who leaks another's private information to others without their permission, such as crushes, passwords and search history.
Jane: Wow I can't believe she told everyone I had a crush on Mike!
She shouldn't have told anyone about it, as we were friends, what a Snitch.
She shouldn't have told anyone about it, as we were friends, what a Snitch.
by comedyislife December 3, 2019
Get the Snitchmug. Yo thats that snitch!
by Yahaedj December 29, 2019
Get the Snitchmug. 
by KGB is better than NKVD September 24, 2019
Get the Snitchmug.