Giglet

A merry. light-hjearted, playful, romping girl; a giddy, silly, thoughtless girl; a wanton, a strumpet. Hence, gigleting, laughing in a foolish manner; trifling behavior.

- Joseph Wright's English Dialect Dictionary, 1898-1905

Giglot, a female laughing or playing wantonly.

- Walter Skeat's Specimens of English Dialects, Westmoreland, 1879

"Away with those giglets too, and with the other confederate companion."

- William Shakespeare's Measure for Measure, 1604