Villain is a general loose passive donk.
In this particular hand the one was playing 59/2/1.4 over 83 hands.

He might do this with J9, I guess a 2 is possible for him. And there’s the bluffs of course.

What’s the worst hand you’d call with here?

Grabbed by Holdem Manager
NL Holdem $0.50(BB) Replayer Game#24496639646

SB ($50)
BB ($89.50)
UTG ($54.60)
UTG+1 ($52.95)
CO ($20.25)
Hero ($77.50)

Dealt to Hero XX:
call, fold, fold, Hero raises to $2.25, fold, fold, call,

FLOP ($5.25) 259
check, Hero bets $4, UTG calls $4,

TURN ($13.25) 2592
check, Hero bets $10, UTG calls $10,

RIVER ($33.25) 2592J
UTG bets $38.35, Hero ?