What does GUMP mean?

Looking for the full meaning of GUMP? From the following image, you can find out all definitions of GUMP. If you want, you can also download image file to print.

GUMPGas Undercarriage Mixture Props
GUMPGeophysical Unit of Menlo Park
GUMPGraphical User Menu Pop-Up
GUMPGrowing Up Milk Powder