deadly

To "get deadly" means to take ecstasy.

Guy 1: hey Seánhead, are you gettin' deadly tonight?

Seánhead: I'm quite clearly off my face

by Samwab April 5, 2008

deadly

Describes something that has the power to make you dead.

It was a deadly mistake for Dan to go bowling that day. The mysterious guy who hates bowling killed him.

Sega made a deadly mistake with the Sega saturn. It died and was unpopular.

The venom of that snake is quite deadly.

by Sega Slayer February 10, 2007

deadly

Irish form of "Brilliant"

That film was bleedin' deadly

by Cully April 1, 2003

deadly

Meaning Sooooo fine.

Hey Dennis, you saw that chick over there walking down the beach? Man she was deadly.

by Kailua boy January 31, 2004

that's DEADLY!

something very stupid or unpleasurable. Usually used to discribe a unfortunate event.

Tron: man bro that bitch want me to take her to applebees and get the steaks !!!

Will: that's DEADLY!

by brad piff January 22, 2011

deadly

(Canadian) Something that is awesome, beyond cool, and something that kicks ass.

"That was deadly!"
"Deadly rims on that truck, eh?"

by jonw May 31, 2003

deadly laser

What the sun is, before there was a blanket.

"No. The sun is a deadly laser. Not anymore there's a blanket!"

by peepums1 July 3, 2017