QJ on SB with short stack facing a 4x raise by donk at BU

[Extremophile]

Villian was running 23/5. He completed his SB, we checked the hand down until he overbet on the river. So, he has some indications of a donk. Comments?

PokerStars No-Limit Hold'em, 11 Tournament, 25/50 Blinds (7 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

MP1 (t1374)
MP2 (t2735)
CO (t1470)
Button (t2180)
Hero (SB) (t890)
BB (t3761)
UTG (t1650)

Hero's M: 11.87

Preflop: Hero is SB with J, Q
4 folds, Button bets t200, Hero raises to t890 (All-In), 1 fold, Button calls t690

Flop: (t1830) 6, 5, K (2 players, 1 all-in)

Turn: (t1830) 2 (2 players, 1 all-in)

River: (t1830) K (2 players, 1 all-in)

Total pot: t1830

[djh860]

fine

[baudib]

I think the BB calls pretty wide in these spots, what's your read on him.

[Extremophile]

I don't have any solid read on him except the one I mentioned in op. His 4x on the button looks like a steal or a really good hand. So, I think this should be close.

[taipan168]

Seems kind of marginal to me, although I'd like it better if you had a bigger stack so you had more fold equity. If you've seen Button raise/fold before that's better.