Mafan is a word derived from mandarin chinese that conveys the feeling of being pained or annoyed by something, about the same meaning as 'troublesome' or 'bothersome'.
Contrary to other definitions on urban dictionary, make sure you do NOT pronounce the "fan" element like a football fan. Instead it should sound more like "mah" "fahn"- the same fan sound as "fondue". In general usage it is roughly equivalent to the phrase "pain in the ass".
Also known to many as ma fan
1. I would go to the grocery store today, but its too mafan
2. Why did you give me all this shit to carry, you have no idea how mafan that is.
3. She is really hot, but she already has three kids, its too mafan to go after her.