Gulker
A person ( usually a male but not always ) whom appears to do whatever it takes to win favors from a person in a supervisory  position. Used on large contractor job sites with lots of new recruits.....many hoping to get the easiest tasks on a long term job site. Gulk is the sound made during the process of winning the favor.
Many of the crew at the mill knew that Dwayne was the big Gulker on "A" shift, because he never got the dirty jobs and always went to lunch with the foremen.