do
do a - behave in a manner characteristic of a specified person or thing. informal
2001Times One reporter even got the brigadier in charge to 'do a Blair' and come over all emotional while discussing the cull.
do one escape by running away; make off. British informal
☞ The expression seems to have originated in the Liverpool area, perhaps as a condensed form of do a runner (seerunner).
do or die persist in the face of great danger, even if death is the result.
2012CNN transcipts If Ron Paul does well, it potentially could hurt Jon Huntsman. This is do or die for Jon Huntsman in New Hampshire. As you know, he's invested all of his effort in New Hampshire. He's got to do well.
dos and don'ts rules of behaviour.
2002Gaurav SabnisVantage Point He told us a long list of dos and don'ts (the former outnumbering the latter by a wide margin) and warned us to be on our best behaviour.
☞ For other idioms containing do, see the entry for the main word in the idiom (for example, do the trick at trick).