Squeal (?), v. i. [imp. & p. p. Squealed (?); p. pr. & vb. n. Squealing.] [Of Scand. origin; cf. Sw. sqvala, Norw. skvella. Cf. Squeak, Squall.]
1.
To cry with a sharp, shrill, prolonged sound, as certain animals do, indicating want, displeasure, or pain.
2.
To turn informer; to betray a secret.
[Slang]
© Webster 1913.
Squeal, n.
A shrill, somewhat prolonged cry.
© Webster 1913.