n. 扁平足, 警察

[医] 扁平足, 平足

flatfoot \flat"foot`\ n.
a police officer, especially a foot patrolman. [slang]
[PJC]


flat foot \flat" foot`\, flatfoot \flat"foot`\ (Med.)
A foot in which the arch of the instep is flattened so that
the entire sole of the foot rests upon the ground; also, the
deformity, usually congential, exhibited by such a foot;
splayfoot.