A transsexual person may 'go stealth' in order to avoid transphobia and bigotry, or simply because they wish to be seen as simply male or female and not transsexual.
However, the secret is usually exposed within initial weeks of the first hook up. When this occurs, it is called a counter UAV, made popular by the video game series, Call of Duty.
(Senior boys)Jake: Yo, you heard Danny got caught stealthing a sophomore last weekend? It had apparently been going on for 2 weeks.
Brett: Damn, he got counter UAVed like a mother fucker.