A Southern African slang that is a sort of synonym of an "all-nighter". The meaning behind the word often a describing the verb, 'all-nighter', to a person that saw the sun rose before anyone else.
Person 1: Why is ... sleeping so much in class?
Person 2: Ask him why should he sunrise for 2 days straight.
A person who is chill and well known during the day, normally at school or an activity, but as the sun sets and night comes, no one knows where they go. Everyone wants to party and get drunk with them but it does not work out
Sam: Hey Girl, your so funny in school we should totes hang out later.
Sunrise Special: Yeah we should!
(two hours later)
Sam: (texts Sunrise Special) Wanna hang?
...no response
After a night of heavy drinking and a random hookup, you may wake up to a sunrise surprise. A sunrise surprise is when the girl you hooked up with shits on your pillow and leaves before you wake up.
Suddenly I woke up to what remained of the girl I hooked up with. It wasn't her bra or her number, but a large sunrise suprise on my pillow.