NL100, weak hand facing river shove, I think he's FOS

[kewl_cph]

Villian is unknown, I have less than 20 hands on him,
but seems to run a tag-style.

After I call the flop CR and he checked the turn I put him on somthing like JT, air or maybe low pocket pair. IS there any point in making a hero call here?

Poker Room skin
No Limit Holdem Ring game
Blinds: $0.50/$1
5 players
Converter

Stack sizes:
UTG: $120.25
CO: $100.00
Hero: $274.65
SB: $138.25
BB: $78.50

Pre-flop: (5 players) Hero is Button with 7[img]/images/graemlins/heart.gif[/img] 9[img]/images/graemlins/heart.gif[/img]
UTG folds, <font color="#cc0000">CO raises to $4</font>, Hero calls, SB folds, BB calls.

Flop: 9[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/heart.gif[/img] ($12.5, 3 players)
BB checks, CO checks, <font color="#cc0000">Hero bets $7.5</font>, <font color="#cc0000">BB raises to $17</font>, CO folds, Hero calls.

Turn: A[img]/images/graemlins/spade.gif[/img] ($46.5, 2 players)
BB checks, Hero checks.

River: 2[img]/images/graemlins/diamond.gif[/img] ($46.5, 2 players)
<font color="#cc0000">BB is all-in $57.5</font>, Hero ?

[AggJedi]

I'd just fold the flop until you get better reads.

[kewl_cph]

I was a bit tilted at the time as I was having a -5 buyin session.

I called and had a WTF-moment when he showed me the nuts.

I had a feeling his flop CR was bogus and I guess I was right...

[cjp010]

Nuts = 45. Fold flop.

[kewl_cph]

You both say fold the flop, but I see so many BS flop check-raises that I seldom lay down top pair any more. Here villian check-raised the flop with 5 high.

I don't want to be weak tight, so I can't just fold top pair to a small check-raises or what?