When an obese or overweight female is wearing a string bikini and her straps disappear in between her fat rolls giving an optical illusion that the bikini is not tied on.
Look over there and check out that "Bikini Houdini." That fat ass woman is wearing a bikini, but I can't see any of the straps because her backfat and fupa are covering the strings.
by megajewel January 24, 2010
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During sex, the man cums half his load into the girl while saving the remainder to pull out on the girls hips and general bikini area. This gives the illusion that the man pulled out; which makes the girl happy because she can only handle so many morning after pills per week.

By now, months have passed and you have been out of the picture for some time. Meanwhile, the woman gives birth... and you, just as Houdini, have long since disappeared.
A: That guy Maria hooked up with at Rick's Steakhouse Pavilion last winter pulled a Houdini Bikini...

B: She said he pulled out but c'mon, that's how effective the Houdini can be if properly executed.

A: Precisely, and that B, is where single mothers come from
by HANDLE WITH CARE June 16, 2011
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