A medication prescribed by disgruntled doctors for patients who insist that they need to been seen for the slightest piffling cold.
"Hello Mr Smith, I see you have the sniffles again. Take one fuckoffacillin three times a day for five days and you'll feel much better. If you need to come back, make sure it's on a Friday, I don't work on Fridays".
by Tube Alloys September 8, 2017
Get the fuckoffacillinmug.