Definitions
1.verbTo make a squawking noise; to yell, scream, or call out shrilly.
2.verbTo speak out; to protest.
3.verbTo report an infraction; to rat on or tattle; to disclose a secret.
4.verbTo produce a warning message, indicating a possible error.
5.verbTo set or transmit a four-digit transponder code. (Normally followed by the specific code in question.)
6.verbTo back out in a mean way.