geek out

verb

To enthuse about a specific topic; to be engrossed in an interest, especially in discussing it with others. (intransitive, slang) · Sorry, I didn't mean to spend fifteen minutes discussing the definition of "decimate". I guess I geeked out for a bit.
To do geeky things; to act geeky. (intransitive, slang) · Hey guys, let's geek out tonight and have a code-a-thon!
To be scared, freak out, panic; to hesitate in fear. (intransitive, slang) · I geeked out there for a minute and broke the lockpick.
To scare or freak out (somebody). (slang, transitive)

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