The initial idioms of the letter B

butt naked	butt of a joke
the butt of the joke	work one's fingers to the bone
butt out	Butt out!
butt ugly	ride (someone's) butt
butter face	butterfingers
butter (one's) bread on both sides	butter up
butter wouldn't melt	butter wouldn't melt in mouth
butter wouldn't melt in one's mouth	butter-and-egg man
butterflies in one's stomach	butterflies in stomach
butterfly	butter
butt-fucking Egypt	butthead
butt-head	butthole
buttinski	buttinsky
butt-kicker	buttlegging
buttload	butt-munch