かめへん

no problem; don't worry (about it)

Word type: 

Kanji: 

構へん

Standard: 

かまわない

Standard kanji: 

構わない

Example: 

今日、あんたとこ行ってもかめへん
Would you mind if I came to your place today?

A: ここ、座ってもええ?
B: うん、かめへんよ。

A: Is it okay if I sit here?
B: Yeah, no problem.

Commentary: 

This is an abbreviation of かまわへん.
かまわへん is the negative form of かまう, which means "to mind".

かまわへん→かまへん→かめへん

Some people say かまへん instead of かめへん.
However, among young people, かまん is may be more common than かめへん or かまへん.

The polite form of かめへん is かめしまへん.