third house

noun (sometimes initial capital letters) Informal.

a legislative lobby.

Origin of third house

An Americanism dating back to 1850–55

Words nearby third house

third fibular muscle, third finger, third force, third gender, third heart sound, third house, third international, third law of motion, third law of thermodynamics, third man, third man argument

British Dictionary definitions for third house

third house

noun

US a political lobby for a special interest