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]

Common Names:

Name	Pronounced	Usage
Vibeke	-	Danish, Norwegian
Mitrofan	mee-trah-FAHN	Russian
Yu	-	Chinese
Karyna	-	English (Rare)
IgnÁC	EEG-nahts (Hungarian)	Hungarian, Czech
Dmitri	DMEE-tree	Russian