Sundaynightus

The diagnosis by fellow employees or your boss as to why you called out sick Monday morning.
Usually a lame excuse is used , usually a "sickness "excuse or some other poorly thought out reason.

Upon returning on Tuesday your miraculously cured of your ailment .

Joe has suffered from sundaynightus for the for the past 3 weeks .

by Dadgad September 23, 2014

sundaynight

1) The act of putting off assignments, generally large projects for homework, until late Sunday night. Average finish time for sundaynighting is approximately 2-3 am, though all nighters are quite common.

2) Extreme procrastination

Other forms: sundaynight - ing

Abbr: sunnighting, sunighting

1) "Have you finished that atmosphere project yet?"

"Nah, I'm gonna sundaynight it."

2) "Dude!! Stop sundaynighting and get working on that African history essay!"

by nallina March 4, 2009