When you are so drunk that you imagine something happening. When you sober up, though, you discover that it did not happen at all, and you drunk-imagined it.
Example 1:
Jennifer Lawrence: *searching her phone contacts* Dude, I totally thought that I got James Franco's number last night at the party!

Anne Hathaway: Nope. You must have drumagined it.
Jennifer Lawrence: Damn tequila!

Example 2:
Tom Cruise: I really thought that the Pope turned me Catholic last night!

Katie Holmes: No, you definitely drumagined that.
by DuchessLemonade January 5, 2019
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