[Redeye]

The only hands I can figure a decent tag would play this way are A5s, 22-44, or something like 55 or 56s. If there weren't a wierd limp-raise, I think he c/res you with 55. With the LRR, I think it is more likely that he might bet out to get the donkey to raise and push you off your hand.

I don't think I like the flop raise, I would just call and reevaluate the turn. I think if you are ahead, your hand is super vulnerable. I actually think that BB has you beaten with some kind of monster and he's leading out looking for a raise somewhere to trap people in the middle.
Maybe because of the LRR BB could also have something like 66-TT and is trying to push you off overs and protect his hand. Its a pretty confusing hand.

I probably call the flop and turn and fold the river, I don't think you can ever be ahead there. Maybe folding to that turn 6 would be best.