- going around
- scamming with/on
- cum dumpster (around your guy friends)
Attached.
Short version:
“We’re attached.”
Glurgy, snuggly-wuggly version:
“We’re attached at the heart.”
Smart-aleck version:
“We’re attached at the groin.”
She’s my “it’s complicated”.
She’s my domestic energy resource.
(She shouts “Drill, Baby, Drill…!” a lot)
MrWhatsit has consistently referred to me as “the concubine” since before we were married.
I like concubine!
I just remembered that my friend refers to her husband as “The Toyboy” because he’s a couple of months younger than she is.
When I’ve been dating and someone asks me if I’m single I say that “no, I’m plural”.
Whatever happened to POSSLQ?
I actually like the term ERRUM. As in an introduction being made: “This is Joe. He’s Jane’s…err…um…”. 
Clothahump, what’s POSSLQ?
jackdavinci, I will remember that one!
Person of Opposite Sex Sharing Living Quarters. Wow, I haven’t heard that one in twenty years!
“I’m in love.” works wonderfully well. So does “I’d like you to meet ____. I love him.” A bit more playful/ less serious can be “I’d like you to meet ____. He’s my favorite!”
Your grandma aside, in the context of rap song lyrics, does it have anything to do with reclaiming the word “jiggaboo”? There’s a song called “jigga my nigga” too…