Mongrel 

One who is considered "flea infested"

Roots from the song "Who Let the Dogs Out" by the Baha Men

Damn bro you're being a real mongrel right now

Mongrel by Ryry2x April 8, 2019

mongrel 

An annoying person who never shuts the fuck up and gives people their opinion when nobody fucking wants to hear it.

guy: wow could she have been anymore of an mongrel today.
guy 2: fuck tell me about it.

mongrel by rablerablerable October 22, 2011

mongrel 

A knob in a state of high alert, viz a viz a watchdog or robber's cur. A less highly-strung version is known as a half-mongrel, or slung-mong.

Oaf: "By crikey, I'm so enamoured of that gentlelady that my mongrel is verily frothing at the mouth. I fear I shall soil my tweeds with nut muck!"

mongrel by Mr Marky January 31, 2008

Mongrel 

A half erect penis

"Man, I'm getting horny... I have a Mongrel!"

Mongrel by Cheekylover July 29, 2009

Mongrel 

Used to describe someone who's accent is all over the place. Intended as a compliment.

Definitely not racist.

That girl sounded like she was from Manchester, Wales and Lincoln all at the same time - she was a proper mongrel-in a good way

Mongrel by Granny robber August 5, 2015

mongrel 

A knob in a state of high alert, viz a viz a watchdog or robber's cur. A slightly less prepared version is know as a half-mongrel, or slung-mong.

Oaf: "By crikey, I'm so enamoured of that gentlelady that my mongrel is verily frothing at the mouth. I fear I shall soil my tweeds with nut muck!"

mongrel by Mr Marky January 11, 2009

mongrel 

Someone who parties exessively hard at all times.

Dude, it's Mongrel Monday. Come down to the house and pound this keg-dog.

Dude, I was such a mongrel last night when I pounded all those brews/shots.

mongrel by Mongrelface McG April 22, 2010