When a guy and a girl sit together sharing a blanket, engaging in sexual activity under the blanket, using the blanket to conceal the sexual act from the rest of the group. Commonly occurs in public settings such as church vans and movie nights
Dave G: Yo BR, you should come on my youth trip this summer.
BR: Hell no, nigga, I ain't doin' that shit.
Dave G: Nah Nah nah, you can get mad bitches on that shit
BR: How's that?
Dave G: In a word, blanket time