The term "Norty horti" derives from two abbrevieated and somewhat altered words due to modern slang/shorthand: the first word (Norty) being "Naughty" and the second (horti) being "Horticulture" put simply... naughty horticulture is to cultivate (grow) an illegal plant (most likely marajuana)

(noun) A successful type of theft which results in an acceptable, impressive and rewarding payday for the protagonist.