branch
stem
stalk
CL:根[gēn]
to block
to hinder
(neologism that evolved from 哏[gén], initially in Taiwan, during the first decade of the 21st century) memorable creative idea (joke, catchphrase, meme, neologism, witty remark etc)
prominent feature of a creative work (punchline of a joke, trope in a drama, special ingredient in a dish, riff in a pop song etc)