business
the business end the part of a tool, weapon, etc. that carries out the object's particular function. informal
1936Richmal CromptonSweet William The business end of a geometrical compass was jabbed into Douglas's arm.
do the business
1 do what is required or expected; achieve the desired result.
2 have sexual intercourse.
vulgar slang
do your business defecate. informal euphemistic
in business able to begin operations. informal
in the business of engaged in or prepared to engage in
2013Telegraph I'm not in the business of making excuses, and I think it's always important to acknowledge in any project where things may have gone wrong.
like nobody's business in no ordinary way; to an extremely intense degree. informal
1991Elspeth BarkerO Caledonia They spread like nobody's business. They're a really pernicious weed.
mean business: seemean.