geek out

verb

geeked out; geeking out; geeks out

intransitive verb

informal

: to behave like a geek

especially : to become excited or enthusiastic about a favored subject or activity

Rail buffs get to geek out aboard a 1924 Pullman-Standard Victorian Coach or a 1952 Granite Eagle, the latter a three-level dining car with a glass observation dome on the upper deck and a sunken lounge on the lower level.

—The Wall Street Journal

… fans will really geek out over the reproduced notepad that features Henson's original outlines and story ideas. Not that I did or anything.

—Dalton Ross

Examples of geek out in a Sentence

Recent Examples on the Web

Come geek out with us over the best cosplay from this year's event. —Chris Cosgrove, Entertainment Weekly, 23 June 2026

This is something that is a lot of fun to to geek out on as somebody that that likes trucks, that likes history. —Joel Feder, The Drive, 17 June 2026

While the rest of the food hall closes around midnight, Bar Kaiju stays bumping until 2 a.m on the weekends, a haven for those who want to geek out over obscure fermentations in a space that doesn’t take itself too seriously. —Mariette Williams, Bon Appetit Magazine, 27 May 2026

Musical theater fans geek out because the space is so intimate and provides such close proximity to the performers, Ladd said. —Annie Alleman, Chicago Tribune, 3 Apr. 2026

Word History

First Known Use

circa 1990, in the meaning defined above

Rhymes for geek out

• about
• bailout
• blackout
• blowout
• breakout
• burnout
• buyout
• checkout
• closeout
• cutout
• devout
• dropout