seam-squirrels

seam-squirrel

A louse that has infested clothing or linens. Typically used in the plural. No way am I staying in such a crappy motel! Their beds are probably crawling with seam-squirrels! Our uniforms were so thoroughly infested with seam-squirrels that there was nothing left to do but burn them.
Farlex Dictionary of Idioms.

seam-squirrels

n. lice. (see also pants rabbits. Contrived.) I got an itch. Must be seam-squirrels.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • seam-squirrel
  • peeper
  • peepers
  • et aliae
  • et alia
  • gunboat
  • gunboats
  • battleships