The West Indies were bowled out for just 61, their second lowest one-day international total, as Bangladesh romped to an eight-wicket win in the third and final match of the series on Tuesday.
Left-arm spinner Shakib Al Hasan claimed career best figures of 4-16 as the tourists, sent into bat first in murky overhead conditions, lasted just 22 overs.
The West Indies still won the series 2-1.
West Indies' lowest ODI total came in 2004 when they were dismissed for 54 by South Africa in Cape Town.
Only two West Indies batsmen reached double figures -- Kieron Pollard top-scoring with 25 and debutant Carlos Braithwaite making 11.
Shafiul Islam and Nasir Hossain took two wickets apiece to complement Shakib.
Bangladesh showed little urgency in reply after losing two wickets with 30 runs on the board, and were happy to wait 20 overs to complete their chase despite the threat of rain.
Local boy Tamim Iqbal hit an unbeaten 36.
The two teams will now play a two-Test series, beginning at Chittagong on Friday.
D Hyatt c Imrul Kayes b Nazmul Hossain 3
K Powell b Nasir Hossain 25
M Samuels c Suhrawadi Shuvo b Shafiul Islam 5
D Bravo c Mushfiqur Rahim b Shafiul Islam 0
K Pollard c & b Nasir Hossain 0
D Sammy lbw b Shakib Al Hasan 2
D Ramdin b Shakib Al Hasan 4
C Brathwaite lbw b Shakib Al Hasan 11
A Russell c & b Suhrawadi Shuvo 2
K Roach not out 0
A Martin b Shakib Al Hasan 1
Extras: (lb 3, w 5) 8
Total: (all out; 22 overs) 61 (2.77 runs per over)
Fall of wickets: 1-10, 2-33, 3-34, 4-34, 5-36, 6-38, 7-45, 8-48, 9-56, 10-61.
Bowling: S Islam 7-1-21-2 (1w), N Hossain 5-0-16-1, N Hossain 2-0-3-2, Shakib Al Hasan 5-0-16-4 (1w), S Shuvo 3-1-2-1.
T Iqbal not out 36
I Kayes c Pollard b Roach 11
S Nafees b Samuels 0
M Rahim not out 10
Extras: (lb 5) 5
Total: (for 2 wickets; 20 overs) 62
Did not bat: Shakib Al Hasan, Shuvagata Hom, Naeem Islam, Nasir Hossain, Suhrawadi Shuvo, Shafiul Islam, Nazmul Hossain.
Fall of wickets: 1-25, 2-30
Bowling: K Roach 5-0-16-1, D Sammy 2-0-12-0, M Samuels 8-1-15-1, A Martin 5-1-14-0.
Man of the match: Shakib Al Hasan
Man of the series: M Samuels.