Boom Pregnant
"Boom Pregnant" is a catchphrase captioned on photos of very attractive men, joking that a single glance was enough to cause instant pregnancy. The line jumped from a literal 2007 pregnancy expression to a horny reply on LiveJournal gossip community Oh No They Didn't in July 2010, then spread across Tumblr, Reddit and Facebook fan pages.
Overview
"Boom, Pregnant" is a catchphrase captioned on photos of good-looking men, most often actors and musicians1. The joke plays on the idea that seeing the pictured man is enough to cause instant pregnancy, a mock overreaction to attractiveness. It shows up as a caption on a photo, a Tumblr tag, or a reply left directly under someone's post2.
The phrase probably riffs on "Boom, Headshot!," a line popularized by web mockumentary series Pure Pwnage3. Punctuation varies wildly across uses, with commas, periods, exclamation marks and even "boom you're pregnant" all showing up as separate Tumblr tag variants2.
How It Spread
How to Use This Meme
The format is straightforward. Post a photo of someone you find extremely attractive, then caption or tag it "Boom, Pregnant," typically using whichever punctuation feels right. It's commonly posted by women reacting to male actors or musicians, and reads as a jokey admission that the pictured person is unreasonably hot.