ULLB

Upper Leg Lower Back. When a person has a butt so small/flat, it’s like their back connects directly to their leg.

It’s hard to spank Jeff because of his ULLB.

I need a belt, my ULLB makes it impossible to wear pants that won’t fall down.

Ullb

Pronounced You'll Be, generally a short length of a hard substance kept underneath or behind your car/truck seat for emergency defence.

You'll be fucked if I need to adjust your attitude with my ullb