I've never seen villain before, but during the 2 orbits that I've been sitting down, he's easily raised 60% of his hands.

$1/$2 No Limit Holdem
6 players
Converted at

Stacks:
UTG ($203.00)
UTG 1 ($324.60)
CO ($117.15)
Hero ($183.00)
SB ($176.00)
BB ($223.00)

Pre-flop: ($3, 6 players) Hero is BTN [7s]
1 fold, UTG 1 raises to $7, CO calls $7, Hero calls $7, 2 folds

Flop: [4s][9h] ($24, 3 players)
UTG 1 checks, CO checks, Hero bets $18, UTG 1 raises to $39, CO folds, Hero calls $21

Turn: ($102, 2 players)
UTG 1 bets $81, Hero ?????

The flop c/r was a little fishy - I haven't been at the table long enough for him to expect me to bet if checked to, so I don't see him playing an overpair this way. I think it's either 99 or air/overcards. My plan when I called the c/r was to get it all in on any low turn card. Now that a low turn card hit, is shoving here still a good plan?

Since he hasn't been at the table a long time (u have not seen this before) I fold to that turn bet. Your call looks very strong and hes not worried.

BTW, make sure u always have 100BB and if u thought he had overcards you should have shoved on flop as a Q,K,A is gonna put a poo poo on ur plans and overcards are not likley gonna bet turn.