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, 2018. Web. 23 Apr. 2018. <https://www.abbreviations.com/MESSING%20AROUND>.