Pardon
Forgiveness
Intuition from my dialect tells me that I should pardon you. Give you forgiveness. You're lucky I speak this dialect.
かんべん
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
勘弁してちゃぶ台。今日は忙かったし、滅茶苦茶疲れているんだ。
Cut me some slack. It’s been a long day and I’m terribly tired.