Nothing to do; not doing anything important. Last Friday, we were just messing around because the boss was gone.
MESP - MESPP - MESQ - MESS - MESSENGER - MESSR - MESSRS - Messrs. - MEST - MESTI
"MESSING AROUND." Abbreviations.com. STANDS4 LLC, 2017. Web. 19 Nov. 2017. <http://www.abbreviations.com/MESSING%20AROUND>.