Top definition
When you ask someone a question you already know the answer to.
Dumbo: You're off work on Thursday right?

You: Umm, yeah... last week we made camping plans on that day since I'm free, remember?

Then you said "oh right, you're always off on Thursdays"

Dumbo: Sorry just had to "firm-a-sure"
by laceylingerie August 07, 2010
Get the merch
Get the firm-a-sure neck gaiter and mug.