sneakover
the same as a sleepover except it is with a romantic or sexual partner requiring one to sneak out of the house for it to occur.
Hey, do you wanna have a sneakover tonight?
sneakover
the same as a sleepover except it is with a romantic or sexual partner whose parents make them sleep in separate bedrooms, requiring one to sneak out of their current room to their partner's.
"My parents will make us sleep in different rooms, but we can have a late night sneakover."
Sneakover Sleepover
When someone sneaks over for a sleepover without announcing to anyone else that you’re having a sleepover.
“Ash wanted to come over by herself, so we had a Sneakover Sleepover. Because last time we had a big sleepover Uncle John showed up too and made her cry.