paddywhack - Saying you’ll do something with someone, but then you ghost

Saying you’ll do something with someone, but then you ghost them and never follow through.

I paddywhacked my friend by saying I’d help him move, then I ghosted him.

I paddywhacked my sister by saying I’d clean my room, then I didn’t.

I paddywhacked my dad by saying I’d cook dinner, and I just ordered pizza.