definition of
grease

[1] #1 grease n. [lubricating oil] a thick fatty oil (especially one used to lubricate machinery). wn

[2] #2 grease v. lubricate with grease; "grease the wheels". wn

[3] #3 grease n. [dirt, filth, grime, soil, stain, grunge] the state of being covered with unclean things. wn