A Flow Hoe is a woman that chases men that are known for their "flow" aka douchebags who are obsessed with their longer hair and usually play contact sports.
Damn, did you see that Flow Hoe last night? She lost her shit when the hockey team came in for the half-off apps at Apple Bee's.
when a debater rejects going out since they have to prepare for a debate
matt: hey dave, you wanna go to that party with me tonight?
dave: nah man, flows before hoes