Hibs striker Paul Heffernan opened the scoring in the 17th minute before Hoops substitute James Forrest, who had replaced Kris Commons in the first half after the midfielder suffered a hamstring injury which will keep him out of the Champions League clash with Ajax at Parkhead on Tuesday night, levelled with a wonderful solo goal with 15 minutes remaining.
He said: "It was shocking - absolutely shocking. Reckless.
"I'm all for competitive football, no one more than myself, but seriously, they were borderline tackles.
"I didn't really say to Pat but I made my feelings pretty clear to the fourth official. I don't think it was any player target in particular, it was across the board.
"Without singling players out, the tackle by (Rowan) Vine on (Darnell) Fisher was rugby-esque. We've got a big Champions League game and I'm not asking any favours, I don't mind teams being competitive, and the physicality of the game was good but I felt it was over the top."
The Northern Irishman hinted at a more physical approach from Celtic when Hibs visit Parkhead in December, saying: "We'll play Hibs again, though" as he continued on a roll: "Look I'll get criticised because people will say it's a man's game, and it is, no question, but the tackles were late, high, reckless.
"You lot are asking the questions so you must see it as well.
"My opinion may be different from Pat's, he'll say he sent his team out to get in our faces and I don't mind that at all, but the ref should take more of a grip on it sometimes."
In addition to the "huge blow" of being without Commons for the visit of Ajax, the Hoops will also be without skipper Scott Brown who was handed a three-match ban after getting sent off against Barcelona at Parkhead earlier in the month after flicking a leg out at Neymar after he had fouled the Brazilian.
Celtic will appeal but the automatic one-game ban rules him out of Tuesday night's match.
Lennon said: "I was very surprised, it's excessive and we have every right to appeal it. I'm never confident with these things, though.
"But look at some of the tackles and then see what Scott did, you have to question what's deemed violent conduct and what's not."
Lennon also claimed Heffernan's goal was offside, saying: "I haven't looked back at the goal, I didn't need to - you can see he's at least a yard off.
"I'm not here to criticise officials but when it's as blatant as that, you have to ask 'why did you miss that?'
"Our reaction to what was clearly an offside goal was fantastic, though, and the unbeaten run continues."
Fenlon showed no contrition when told of Lennon's criticism.
"Good," he said.
"That means the message is getting across to my players, that we want to go and compete and get in people's faces.
"We worked tremendously hard and we made sure Celtic knew they were in a game and that's what it was about.
"You've got to be because if you stand off them and let them play then they will tear you apart and we weren't going to (let them) do that.
"I think most of the tackles were fair, I think there was one in the first half that they moaned about but it was a good tackle, it was a real good challenge.
"Everyone has different opinions I suppose."