To sleep with ones mother and daughter simultaneously.
My girlfriend’s mother is so fit I wish we could play tennis doubles
Daughter of their grandparent’s full sibling with the other grandparent’s full sibling.
My double-cousin-aunt is a good person.
A Boricua Barbie/Bonita Barbie or better known as Double B is lingo derived in Dallas, Tx for a gorgeous woman of Spanish or Latin decent that resembles a doll or barbie. From the way she dresses to the makeup she puts on everyday.
Guy 1: Damn bro look at that Spanish Mami right there..
Guy 2: Ya bro she's fye as fuck. She's a Boricua/Bonita Barbie or Double B for short...
"Daaaaaamn bro. She a Double B.."
Oh look it's tabish the dogs favourite double hypocrite
It's when your nose is really stuffy and you simultaneously blow air really hard through each nostril, which might be enough to blast snot from both of them at the same time, projecting a scattered tapestry of snot onto whatever you happened to be aiming you face at. It can also be done unintentionally, such as when you sneeze really hard and manage to cover your mouth but it gets diverted to your nose, spraying particles every which way. Regardless it's pretty disgusting so make sure you use a damn tissue next time or if you don't have one sneeze into your sleeve.
"Oh well that's gross. That guy just fired his double barrel SNOTgun at his desk and now there's boogers everywhere."
"I was sitting in class and this guy behind me blasted the back of my head with a double barrel SNOTgun. Guess that explains why my nose is feeling a little stuffy and I feel a cold coming on. ACHOO!"
Someone with exceptionally large breasts that are at least a size 34 DD
Dude 1: Hey man this chick asked me why people called her a Double D'er in track practice the other day. What should I tell her?
Dude 2: Just let her figure it out man it's not hard.
When someone has their in game voice chat enabled alongside voice chat on another application (e.g, Discord).
"and that's when he-"
"and that's when he-"
"Dude, you're Double Mic-ing"
"oh sorry, is this better?"