110 proof

Etymology
See.

Most hard liquor sold at retail in the United States is between 80 and 95 proof (40 to 47.5% by volume); higher proof alcohol is usually bootlegged.

Adjective

 * 1)  Stronger than strong.
 * 2) * 1941 February 9, "The 'Hated Hun'—Then and Now", The New York Times,
 * In those days a Hollywood hero had to be 110 proof....
 * 1) * 2002 February 1, "With a Sister Tour, 'O Brother' Family Expands", Boston Globe,
 * Then I was wondering who this Bob Dylan was who wrote this great song, and then I was going deeper and deeper to the stuff that's 110 proof.

Adverb

 * 1) Intensely; strongly.