1 definition by Jbizz34
When you insert your flacid (limp) penis into a females vagina and then get an erection and proceed with intercourse.
Girl: "What the fuck are you doing! Ughhh get awa... Oh oh baby that's nice."
JustinBryant: "Oh yea baby, you just experienced a Belgium surprise."
JustinBryant: "Oh yea baby, you just experienced a Belgium surprise."
by Jbizz34 September 22, 2009