"That girl is such a Flanagan, she just walked over to that bum in the cargo van and jumped him right here in the Walmart parking lot! Amazing!"
or as an insult, grouped with other insults:
"YOU STUPID, MUFF-DIVING, COCKSUCKING FLANAGAN!"
or as a verb:
"Guys, I bet you $5 that I can get that chick down the street to Flanagan Jacob here. C'mon, $5. Anyone? She's not THAT ugly! C'mon! Don't be a pussy Jacob!"
Verb- Flan, Flaned, Flaning