Involuntary semi, caused by an unknown mix of vehicle vibration, women and the inevitable smell of diesel fumes leaking in through the back seats on a crappy public transport. Usually happens in a morning on the way to work.
8:30 AM - the bus is packed. It smells of diesel fumes as you sit on the back seat. The bus is old and vibrates like mental. A hot woman gets on the bus and you're suddenly aware of a semi, but you don't know what's caused it. 'Diesel Nob'
by roocifer July 15, 2010
Get the Diesel Nobmug. 1. "Dude, that baseball bat hob nobbed Wally so hard that he almost copped death."
2. She hob nobbed his unit last night.
2. She hob nobbed his unit last night.
by dims April 29, 2005
Get the hob nobmug. by andrew simmons October 19, 2005
Get the nob zitmug. 
A way of saying "probably" when you're not actually certain of the likelihood, much less have interest in, the topic of discussion. See antonym at probs not.
Tom: Do you think he's actually going to collect our homework?
You: Probs nobs. Just change the header of your last paper, I'm sure he won't notice.
You: Probs nobs. Just change the header of your last paper, I'm sure he won't notice.
by Mitchell Lane May 11, 2008
Get the probs nobsmug. a female who gets it in the ass or the vagina by a horse and she shits out horse cum for the next month.
by darkthatfollows May 23, 2010
Get the nob jockeymug. the name of the activity when a man orally and/or digitally (that's with his fingers) gratifies a woman.
by Fairygirl1125 December 19, 2007
Get the nob jobmug.