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Negombo is a word used to describe someone who is or has done something extremely stupid. You can also say Negomboid.

This word can also be combined with the word minky (see Urban dictionary entry on this word), to form 'minky negombo', which is a more powerful insult than when negombo is used in its own right.

The word orginated in Sri Lanka, where Negmobo is the name of a coastal town, which is minky.

Negombo can be also used in the plural sense - negombos or negomboids.
"You're an absolute negombo" OR "You absolute negomboid"

"You are a total bunch of negombos/negomboids"

"This work is totally minky negomobo"

minky
by Dan_Mink July 14, 2010