Ermm guys i lowkey don't get the ending where the uke looks at the card

I might be wrong but I think that card was the last card that the dealer had to show see which player gonna win. But as you see the Bottom and Top manipulated the other guy to think he was going to lose even though he got the good cards before revealing the last card. So that last card may be the good card or the bad one for the other guy but seeing the face Bottom made at the end, that card might be the good one for the other guy. That is pretty open to think.
Sry my eng