Gun Show and Ham Raffle
The odd pairing of one toned and attractive person with one who is slovenly and overweight. Uneven heights often characterizes these matches as do multiple toddlers and wearing sweatpants in public.
(discreetly inclining head to couple with three kids sitting on a park bench)

Dude 1: Gun show and ham raffle at 3 o'clock.

Dude 2: She's roomy. Kids ruin your figure.

Dude 1: Not his! Hubba hubba!