duck out

Meaning

Verb

• To depart quickly or exit abruptly, especially in a manner which does not attract notice and before a meeting, event, etc. has concluded.
• To depart quickly or exit abruptly by way of, especially in a manner which does not attract notice and before a meeting, event, etc. has concluded.
• To move or act so as to achieve avoidance, escape, or evasion.

Origin

• Possibly an allusion to the abrupt manner in which a swimming duck can dive and disappear beneath the surface of the water.