Steve Bruce watched Hull exit the League Cup on penalties and then confirmed he had been charged by the Football Association for his tirade against referee Michael Oliver at the weekend.
Tottenham edged into the quarter-finals of the competition with an 8-7 penalty shootout win after the scores were tied at 2-2 following 120 minutes of absorbing action at White Hart Lane.
It was the second time Bruce had tasted defeat at the north London club in four days, with the last instance coming on Sunday when the Tigers lost 1-0 thanks to a controversial penalty given by Oliver.
The referee gave a spot-kick when Jan Vertonghen's cross cannoned off Ahmed Elmohamady's legs before striking the winger's arm.
Bruce railed at Oliver after the game, saying: "It was a joke decision.
"I have to ask the question, would we have got it? In my opinion, he (Oliver) couldn't wait to give it.''
He has been charged by the FA for those comments, although he feels he did little wrong.
"I've been charged," Bruce said.
"Mike Riley (head of the Professional Game Match Officials Board) rang me on Monday morning telling me they've made a huge mistake. What am I supposed to say?
"What is the law and what is it supposed to be? I'll argue my case. It will cost me a few quid, but I'll do it."
Bruce claims Hull games are not officiated by the most high-profile referees.
"We don't get the big referees. Are we not as important as the big clubs?" he said.
"Although I suppose Michael Oliver is supposed to be one of the top referees... but I can't seem to remember Howard Webb coming to Hull very often. We've had a bad decision and a bad couple of days but we'll see what the FA say."
Spurs went ahead with a superb long-range strike from Gylfi Sigurdsson but were pegged back by a howler from Brad Friedel.
In extra-time Paul McShane gave Hull the advantage but Harry Kane took the game to penalties and Spurs came out on top when Friedel saved Elmohamady's spot-kick.
Villas-Boas had complained about the Tottenham fans at White Hart Lane during Sunday's win, but he was happy with their support for the team in the cup clash.
"It was a great, entertaining game and the supporters were absolutely fantastic," the Tottenham manager said.
"To see their response after we suffered a setback was very pleasant, they can make that difference for us. It was a great atmosphere and it was great for the team to feel that empathy with the supporters."