Answer:

whopper

Answer	Crossword Clue
WHOPPER	Big fib
WHOPPER	Story that's not straight
WHOPPER	Tall tale

WHOPPER	Big lie
WHOPPER	Prodigious prevarication
WHOPPER	Big lie.
WHOPPER	P. Drake's portrayer in a big lie
WHOPPER	Ludicrous falsehood
WHOPPER	Face of white bunny - very big one (7)
WHOPPER	Burger King offering