the act of going somewhere to have sex with a chick, usually used when running a train

Spanish quarter of Frisco. Where you can get a taco and a greencard from the same shop. Like East LA. 24th street is the Nortenos, 20th-18th is the Surenos and 16th street is the crack heads and potheads.

To be totally focused on one goal whilst under the infuence of narcotics, to the possible detriment of personal health, social standing and other shit.

Usually being on a "mission" refers to be searching for any kind of drugs, but can also mean looking for other things.

travelling back and forth to many places

trying to get with someone at a party or any other places ,basically hooking up ...

Originating in Scituate MA and often referred to as "Scituate Slang", a 'Mission' is when one person will hit up another (that they like, think is hot, etc) trying to hook up with them in a car or other sketchy spot. Missions are most likely take place In a parked car in a sketchy dark parking lot. This word has swept through the town and everyone knows the classic 'Mission Spots' where someone can take that significant other on a mission.