you'd better believe it

you('d) better believe it

Absolutely, without question; rest assured. A: "Man, he's the fastest runner this school has ever had!" B: "Yep, you'd better believe it!" A: "And is the movie really scary?" B: "You better believe it!"
See also: believe, better
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.

you'd better believe it

Also, you better believe it. You may be assured, as in You walk ten miles every day?-You'd better believe it! This imperative is almost synonymous with you bet your ass. [Colloquial; mid-1800s]
See also: believe, better
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

you'd better believe it

You can be absolutely sure. An Americanism of the mid-nineteenth century, it appeared in print in 1856. The Toronto Globe and Mail used it in 1968: “You’d better believe it . . . We’ve got ’em.” For a similar affirmation, see take it from me.
See also: believe, better
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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References in periodicals archive ?
JOHN COLTRANE Ascension (Impulse!): When BBC's Saturday evening jazz documentary slot devotes a whole series of programmes to one album, you'd better believe it's a major work.
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