Bingo relative (4)
I believe the answer is:
keno
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bingo relative</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for keno that I've seen before include "game of chance" , "A bingo-like game" , "gambling game" , "gambler's choice" , "2 8 [CASINO GAME]" .)