tumbler

1 ENTRIES FOUND:
tumbler /ˈtʌmblɚ/ noun
plural tumblers
tumbler
/ˈtʌmblɚ/
noun
plural tumblers
Britannica Dictionary definition of TUMBLER
[count]
1 
a  : a glass used for drinking that has a flat bottom and no stem or handle
b  : the amount of liquid held in a tumbler
2 
: a person who performs athletic movements that involve rolling or turning along the ground or through the air