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
Armen	-	Armenian
Adeline	a-də-LEEN (French), AD-ə-lien (English)	French, English
Mahon	-	Irish
Sheffield	['ʃefi:ld]
JerÓNimo	he-RO-nee-mo (Spanish)	Spanish, Portuguese
Chevonne	-	Irish