from
The Collaborative International Dictionary of English v.0.48
Loo \Loo\ (l[=oo]), n. [For older lanterloo, F. lanturelu,
lanturlu, name of the game; orig., the refrain of a
vaudeville.]
(a) An old game played with five, or three, cards dealt to
each player from a full pack. When five cards are used
the highest card is the knave of clubs or (if so agreed
upon) the knave of trumps; -- formerly called
{lanterloo}.
(b) A modification of the game of "all fours" in which the
players replenish their hands after each round by drawing
each a card from the pack.
[1913 Webster]
{Loo table}, a round table adapted for a circle of persons
playing loo.
[1913 Webster]