A frontal ass and a more socially acceptable and gender neutral term for a gunt. Much like a budonkadonk, but in the front. Unlike a budonkadonk it is to be avoided at all costs.
Damn, look at the size of that frudonadonk! I can't tell if she is walking towards me or backing that ass up.
Is that a frudonkadonk or do you have a beach ball in your front pocket?