1 definition by Captain Rough Around The Edges

keen as cheese and mustard

To be excited and/or show agreement towards participation in an upcoming event

All over gang member 1: "Halo?"
All over gang members 2+3: "Halo!"
All over gang member 4: "I'm as keen as cheese and mustard to play Halo"
All over gang member 1: "Then let's play"

by Captain Rough Around The Edges October 25, 2006