1 definition by Deloss Dodds

To lose a football game in excruciating fashion after building a significant halftime lead.
After building a 35-17 halftime lead against Arkansas on Saturday, Texas A&M proceeded to aggy up the game by turning the ball over twice and giving up 250 passing yards.

Did you see Romo blow the lead those two pick-sixes against Detroit today? He really aggied up that game.
by Deloss Dodds October 2, 2011
Get the Aggy up mug.