Orphan's Father's Day

Alright, listen up, buttercup. This joke is about orphans, which are kids without dads (or moms, but that's not the point here). Father's Day is when people celebrate their dads. So, the joke is that orphans can't really say "Happy Father's Day" 'cause, well, they don't have a father to celebrate, ya get it? You probably don't get it. You aren't the sharpest tool in the shed, are you?