fire something up

fire up

1. To cause someone to feel more passionate or excited about someone or something. In this usage, a noun or pronoun can be used between "fire" and "up." I know our players are nervous about the big game, but it's our job as coaches to fire them up.
2. To turn on a machine. In this usage, a noun or pronoun can be used between "fire" and "up." Well, fire up the coffee pot and tell me all about your date last night!
3. To light something, typically something to be smoked (such as a cigarette or pipe). In this usage, a noun or pronoun can be used between "fire" and "up." Come on, fire up those cigars, boys—we're celebrating!
4. slang To smoke marijuana. He must fire up all day long because he's always stoned when I see him.
See also: fire, up
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

fire something up

tv. to start something such as an engine; to light something. Fire this thing up, and let’s get going.
See also: fire, something, up
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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