This was a drinking game way back when ...
I start with a word, any word. The next person has to come up with a word that either RHYMES or has some REASONable connection to that word.
For example: if I say "CAT", the next person can either RHYME it with "BAT"
REASON that it connects to the word "DOG" or "SCRATCH" or "PU$$Y" ... So long as it makes obvious sense.