1. I've caught fish in this lake before but they are all milli's or milli-mouths. 2. Don't be such a milli-mouth and whip his ass. 3. That guy is a milli-mouth maggot!
by Thomas Crews October 20, 2008

When you are in the 69 position and milly pins you down with her knees on your shoulders and shits in your mouth then uses your eyelashes and eyebrows as toilet paper.
by """"""" February 10, 2019

by Bigbattysecrets April 16, 2020

a power-house drug, usually used to 'celebrate' the underground holiday of february the 15th, the date of which the drug was created by a 15 year old girl commonly known as 'Millz', it is usually injected or snorted, but can also be boiled to make tea
by amelia111 February 16, 2009

a 15 year old girl who shags everything in site. She likes one night stands and pretty sure this bitch has STD’s but who knows. Deffo has had many pregnancy scares in life even if it’s unconfirmed. It is also a term used for when another girl acts like her.
by gossip_princess1 May 26, 2020

The art of acting like you make millions, when you only make 30k a year. Boasting on social media sites that you live large, but you are broke like the rest of us.
by BassPlayerPHX August 26, 2013

millie and liv are troublesome pair. They cause the biggest fights and riots and are right slags. They fight anyone that gets in their way. biggest chavs going, they shag all the boys.
boy#1: damn millie is finee🥵
boy#2: be careful if you hurt her feelings liv will knock you out
millie: you wot m8!
boy#1: man your right. millie and liv are hard
boy#2: be careful if you hurt her feelings liv will knock you out
millie: you wot m8!
boy#1: man your right. millie and liv are hard
by Cherrybabygirl01 May 30, 2020
