A British loyalist (who could be from any country eg. Canada or Australia) who gets overly defensive and angry when someone says something that could even slightly be taken as being opposed to Britain.
Tom is such a Mega Grenadier. He got relay mad at me yesterday when I said I'd joined the Australian Republican Movement , and said that I was disrespecting my ancestors and not showing loyalty to Britain.
by DoorHandle1234 January 2, 2017
Someone who relies on grenade kills in first-person shooter games in order to make themselves seem like they are good at the game
by carlsnametag February 26, 2021
The act of behaving like an idiot when out on the town. Comes from a cross between grenade and radiation, as people who do this tend to have the effect of exploding through a club like a grenade and radiating annoyance through the crowd.
Dunco:"How was Mick last night?"
Ello:"No good, it was total grenadiation, he got us kicked out in ten minutes"
Ello:"No good, it was total grenadiation, he got us kicked out in ten minutes"
by Dunco November 2, 2005
modern offroader with an a90 supra engine and transmission. what land rover shoulda done for the new defender. they even lost the defender's rights, it's what they get for focusing on range rovers
by weegeedaone December 29, 2021