The systematic IUPAC name is 3-[(2S)-1-methylpyrrolidin-2-yl]pyridine
But in general usage, both the scientific and everyday names for nicotine are ... nicotine.
There aren't slang terms for people's names.
Some common slang names for acid are LSD, Lucy, tabs, and doses.
Saying names in the back slang requires no strict rules.
Speed IS a slang name. It means amphetamines. Click the related question to find more slang.
"magic"
Tater Juice. =)
Poppers
There is alot of slang/street names for Hallucinogens like power powder, magic dust, and many more
Slang names for a lawyer include hired gun, ambulance chaser, and shyster.
It's not really slang, but that muscle is commonly called the calf of the leg.
the old ticker
Anal-Attraction