a tall tale
• an account that is fanciful and difficult to believe.
• "speakers delighted the audience with true stories and tall tales"
Similar:
unlikely,
improbable,
exaggerated,
far-fetched,
implausible,
dubious,
overblown,
unbelievable,
incredible,
preposterous,
outrageous,
absurd,
embroidered,
dishonest,
untrue,
cock and bull,
