the inability to sleep on a Sunday night because you were out late the past two nights partying/hanging out and now you have to go to bed much earlier for work/school the next morning
"I only got 4 hours of sleep last night....I went to bed at 11 but Sunday night insomnia kept me awake forever
by jack butler505 March 03, 2011
by Kitkat71093 January 20, 2009