The sexless innkeeper is when you take what you think is a potential hookup home with you, and they fall asleep on your couch without hooking up. She or he only went home with you because you lived close by and they needed a place to crash for the night, therefore using your place only as an inn, making you its innkeeper. Defined by Barney on How I Met Your Mother.
"She slept there but you didn't sleep with her? You totally gotused as the sexless innkeeper!"
it's when you have a date with girl and you don't get laid ( can't plant your seed inside of here ) or you get laid and wore a condom which results in a seedless date
Cody Ko: last night i had a date with a girl but it was a seedless date