What is Mailing It In?
1.
Slang for doing the least amount of work possible or slacking off.
Hes really been mailing it in lately, he hasnt finished any of his labs.
2.
To call out a co-worker for being lazy as it there last day.
"Tim you have really been mailing it in today, how about you actually get something done"
See
Random Words:
1.
a cough of which multi-coloured mucous is symptomatic
Kate has been suffering from rainbow cough for two weeks
See cough, phlegm, grot..