dumbover

A reduced IQ that is the result of having smoked marijuana the night before. Similar to a hangover, but not unpleasant.

Sorry I'm acting really stupid this morning; I smoked last night and I have a dumbover.

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Dumbovative

The opposite of innovative.

To say that ‘this is the way we’ve always done it, so it must be the best way’ is dumbovative.