Mix-and-Match Vaccination 

When people experienced more mild and moderate side effects, such as more frequent chills, headaches, and muscle pain, after they were jabbed with doses of two different vaccines, compared to being vaccinated with doses of the same vaccine.

Mix-and-match vaccination allegedly gives people longer-lasting immunity, better protection against new variants, or simply gives hospitals the flexibility to swap vaccines should supplies be interrupted.

Mix-and-Match Vaccination by MathPlus May 13, 2021

mix-up

when one is to ask or repely to a question with a random answer

(person 1)Hey how's the weather? (person 2)Family guy comes on at eight.(person1)Why are so "mix-up"

mix-up by jumper1847 September 18, 2010

mix'd 

Noun.
Bisexual male.

A prepp that isn't brisk.

Dude listens to The Donnas. Maybe he's mix'd.

mix'd by Chrekol September 27, 2005

mix a melt 

Named after a popular Arby's sandwich, a mx-a-melt is a sex act in which you pee on your partner while giving them a titty twister.

I totally gave the bitch a mix a melt and her titties were swollen and covered in piss. It was ILL!!!

mix a melt by Trevor Fuckin LeBlanc June 17, 2006

mix the gravy 

verb; to produce an in-and-out flow of drugs and blood in a hypodermic stringe chamber after the "register". This mixes the blood-drug solution prior to completing the injection, ensuring a uniform blend of drug solution into the vein, thus producing a pleasant and even "rush" or "flash".

Juan: "You got a register".
Jose: "OK, I'll mix the gravy and slam".

mix the gravy by dogo December 6, 2009

Mix me 

Have sex with me

Mix me bro

Mix me by Jack. Black. March 15, 2017

mix master christ 

1 Godliest gamer in the land
2 the guy with the good grass
3 Darth Mual mixed with a hangover
4 kama sutra master

mix master christ by Anonymous July 22, 2003