night-mail 

(n.) - Email letters and messages that arrive in your inbox overnight while you are sleeping, often from people in different time zones around the world

"Every morning I check my night-mail to see if anything urgent arrived from overseas. With all these time zones worldwide, you never know who is going to email you and when!"

-- overheard at a watercooler at the UN building in Manhattan

night-mail by PRwiz101 September 1, 2009

nightmilker 

When you be sleeping and she be sneaking and start giving you a hand job

Yo i fell asleep at a party and the chick nightmilked me.
Oh shit she's a nightmilker

nightmilker by Wllwiser February 23, 2018