no big deal

and no biggie

Inf. [of something] not difficult or troublesome. Don't worry. It's no big deal to wash the car. No problem. It's no biggie.

and no biggie and no big whoop

n. (something) not difficult or troublesome. (see also NBT.) Don’t worry. It’s no big deal. No biggie; no prob.

Name	Pronounced	Usage
Amse	-	Frisian
Nava	-	Hebrew
Ronald	['rɔləld]
Queenie	KWEEN-ee	English
Jovian	-	Ancient Roman (Anglicized)
Zahra	-	Arabic, Persian