Plack (?), n. [F. plaque a plate of metal. Cf. Plaque.] A small copper
coin formerly current in Scotland, worth less than a cent.
With not a plack in the pocket of the poet.
Prof. Wilson.
Plack"et (?), n. [F. plaquer to lay or clap on. See Placard.] 1. A
petticoat, esp. an under petticoat; hence, a cant term for a woman.
[Obs.] Beau. & Fl.
2. The opening or slit left in a petticoat or skirt for convenience in
putting it on; -- called also placket hole.