Ishimondo is a term for a amazing ship. Ship as in ship/ship name. (Omg, your not a couple? I ship it!) This ship could be your favorite characters. It is an adjective. Other definitions would be cute, romantic, and just generally good qualities in relationships.
Jared: “Here comes Nathan and Abby!”
Lexi: “ I’m sickof them, their such an ishimondo couple.”