Adaptation of the Marine Corps motto: Semper Fi (Latin for Always Faithful). Used to describe the general Marine attitude (i.e always be flexible with plans cause something will change that will fuck up your night) towards the constant changes that are rampant in every Marine unit.
Marine 1: Hey man, go easy at the bar tonight, just found out we have a CFT at 04
Marine 2: Oh well, semper gumby
Marine 2: Oh well, semper gumby
by DevilDogPOG October 27, 2011
The unofficial bastardized Latin motto of many organizations, particularly military units. "Semper", of course is the Latin word for "always". "Gumbi" refers to Gumby, a TV character made of clay. Thus, Semper Gumbi is translated as "Always Flexible."
G.I. Joe: "We were supposed to go back home a month ago but these Iraqis can't get their stuff together. Now we have to stay indefinitely."
G.I. Jack: "There's no use crying about it. Just suck it up and remember - Semper Gumbi."
G.I. Jack: "There's no use crying about it. Just suck it up and remember - Semper Gumbi."
by the.puppet.man August 8, 2006