Enter a clue or pattern or both:
The Clue
1975 #1 hit for the Doobie Brothers (10 letter answer)
The Answer
BLACKWATER
Tags
Notes
The answer BLACKWATER is so rare that it appears less than once every 2500 puzzles.
Definition
BLACKWATER as a noun:
1. any of several human or animal diseases characterized by dark urine resulting from rapid breakdown of red blood cells