Stealth Sex 

1. (n): To have intercourse while one or more people in the room are either sleeping or unaware of the act taking place.

We were all watching a movie but I knew Mark and Alysha were having stealth sex.

Stealth Sex by The Tube Sock November 13, 2011

Stealth Sex 

a sexual act in which one or more of the participants are unaware of the act

woah did i just get laid or was that rape mabe stealth sex

Stealth Sex by crack man 09 June 12, 2009

stealth sex 

A situation where someone (often a woman) is unaware that they are engaged in sexual activity with someone else. Usually occurs as a result of unconsiousness caused by rohypnol, chloroform rags, sleeping gas, alcohol inebriation, and blunt force trauma.

John spiked Jane's drink with rohypnol and then took her to his apartment where he gave her stealth sex.

stealth sex by Fortis Maxar May 2, 2006

Stealthex 

a group dedicated to making bots and/or cracks for other bot for use on Silkroad Online

or it could be just a group of Ninjas that use magic

OMFGWTFBBQHAX Did you pick up the new StealthLite from the group of Ninjas that use Magic on Stealthex

Stealthex by j3r1co October 9, 2008