A noodle, for reasons unknown, that has been stuck up a largely obese woman's vagina and has been cooked at 98.6 degrees Fahrenheit for an unknown interval of time. They likely smell of fish and it is not advised that they be consumed by any living being, unless you're into that sort of thing.
May also apply to a woman who is so loose, her vagina looks more like spaghetti strings.
"Where did my pasta go?" "Probably Celina's vagina over there; she's into fuck noodles."
"Heard you ran away from Diane." "Are you kidding? She's been with so many guys, she's a total fuck noodle!"