Wiktionary
a. (context vulgar slang English) Very large, expansive, fat, impressive, muscular, intimidating, or important alt. (context vulgar slang English) Very large, expansive, fat, impressive, muscular, intimidating, or important
Usage examples of "big-ass".
He had one set of big-ass revolvers, a couple of those tiny, deadly machine guns that shoot so fast they sound like a band saw, and a bunch of automatics.
He remembered it all, just as he remembered the town-hall clock tower lifting off into the afternoon sky like a big-ass bird.
Linda was short and curvy, dark eyes and pursed lips and an hourglass figure that she thought made her look topheavy and big-assed, but I thought she was fabulous and soft and bouncy.
The SS 396 sported a jacked-up rear end, big-assed Goodyear radials with raised letters, and rust rot along the fenders and rocker panels.
It was the kitchen of someone who knew how to do more than run the microwave commercial range, pots hanging from the iron rack above a granite-topped island loaded with big-ass knives in a wood block.