when you think a girl is hot from the thumbnail of her profile picture, but upon further investigation, you find she is a slampig.
"Why didn't you smash last night, this girl looks hot"
"No click on her profile, it's just the thumbnail effect. She's gross."
"No click on her profile, it's just the thumbnail effect. She's gross."
by Ladybuttpants February 11, 2015
Get the Thumbnail effectmug.