Wiktionary
vb. (context transitive English) to smear with oil or grease.
Usage examples of "grease up".
They hunkered over their plates and wiped the grease up with their fingers and drank from the gourd.
I got to grease up me armor with some drow blood, I do, but with yer stupid plan, I'll have to do a month's digging just to find a body to rub against.
I got to grease up me armor with some drow blood, I do, but with yer stupid plan, I’.
And I'm telling you that Morton Colton's job has been and will be to grease up the law both local and them other kinds.
The starboard engine of the Dakota was laid bare and Peter Gericke, in a pair of old overalls, grease up to his elbows, worked with a Luftwaffe sergeant and three mechanics.
His own arms were covered with grease up to the elbows, however, and the curse was more in the way of a ritual formality than anything truly heartfelt.