W4H4O1O1S1I1S1
13 points
WHOOSIS is validvalid
an object or person whose name is not known [n WHOOSISES]
an object or person whose name is not known, also WHOSIS, WHOSIT [n -ES]
an object or person whose name is not known [n WHOOSISES]
an object or person whose name is not known, also WHOSIS, WHOSIT [n -ES]