110 proof
Extremely strong or potent. Its original sense refers to the alcohol content of liquor. This cleanser is 110 proof. If it can't get the stain out, nothing can.
a hundred and ten percent
An effort towards something that is greater than one believes one is capable of doing, i.e., beyond 100% of one's ability; often used as a motivation in sports. Primarily heard in US. Alright guys, we all need to dig deep for the second half of the game. Go out there and give a hundred and ten percent and bring home a win!
give 110%
To put forth the absolute maximum amount of effort or energy possible (i.e., even more than is usually required or seems possible). We're going to have to give 110% if we want to get this project finished by the deadline. A win today secures our spot in the championship, so go out there and give 110%!