half shell

About 0.07 uses per million words.

Meaning

1. adjective Inexpensive; not overpriced.
2. noun Any half of a roughly spherical-like object; any dome-shaped object.
3. noun Either half of a clamshell especially when used to serve individual portions of spiced, minced, breaded, baked clams.

Similar words

two a penny tin-pot nickel and dime halfpenny lickpenny twopenny-halfpenny ten a penny tinpot flatch-yennep twopenny-ha'penny