The effect of a person's attractiveness being dramatically improved by a singular event or series of subsequent events.
Dude, I saw a real cutie at Blockbuster earlier. At first, she was just "okay" looking, but then she said something to her friend, and she had an Australian accent! Needless to say, the Seven-Eleven Effect took her from a 6 to solid 9!
by Jambo_11 September 05, 2011