fubnoxious
Fucking obnoxious. Like fugly is a combination of 'fucking' and 'ugly', it is a combination of 'fucking' and 'obnoxious'.
"My sister is so fubnoxious, she's driving me crazy."
fubnoxious
The thin line between fun and obnoxious
Erica had the mic, was drunk and singing loudly and was acting fubnoxious.