Bilk is defined as to swindle or get out of paying.(verb)
An example of bilk is to slip away without paying the check.
The definition of a bilk is a person who cheats or swindles, or an act of cheating or swindling.(noun)
An example of a bilk is a person who never pays in his share when going out to eat.
See bilk in Webster's New World College Dictionary
Origin: ? altered < balk
See bilk in American Heritage Dictionary 4
transitive verb bilked, bilk·ing, bilks
Origin: Perhaps alteration of balk.
Learn more about bilk