لا مؤاخذة any way it's a slang it means excuse me or pardon me also, it can mean sorry

Laa Muakhza: لا مُأخزة but it is a dialect Arabic word,, here r another meaning of excuse me :) Afwan : عفواً Min Fadlik: من فضلك Law Tasmah: لو تسمح Ma'zeratan: معذرةً Min ba'd Eznik: من بعد إذنك

Whilst this phrase is indeed used in colloquial Arabic, it is not a colloquial phrase, since colloquial dialects generally do not negate with لا Therefore it's most likely borrowed from Fus-ha.

This is a slang word: لمو أخزه