duck out
verb
RareNot in standard dictionaries
1
To depart quickly or exit abruptly, especially in a manner which does not attract notice and before a meeting, event, etc. has concluded.
2
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.
3
To move or act so as to achieve avoidance, escape, or evasion.
4
To avoid a debt; to skip out on a bill.
#slang