What is Yer Maw's Baws?
1. As In, 'Yer Maw' (Your mother) has 'baws' (balls). Insult towards someones mother
2. Stating that in no way is one doing a task
1. Aye, yer maw's got baws ya tit!
2. Pish, yer maw's baws am doin that tosh!