I'm in a sexuationship. We have sex. We send and receive sexual text messeges. We don't make love. We don't fall in love. We don't exchange gifts. We have sexual relations. And we're done.
The unoffical relationship of two people developed through sexting. Flirting, hooking up, and sexting a person but not being officially in a relationship. Similar to a fuck buddy but has emotional elements of a relationship as well even though neither party will admit it.
A: "So are you two in a relationship?"
B: "NOOOO! WE ARE NOT!"
A: "But you guys sext and hook up right?"
B: "Well yeah but it is definitely not a relationship"
A: "So its a sextlationship!"