Something or someone that is so useless they serve no purpose. For example tits on a nun serve no purpose, they don't have sex so they are useless a sex objects, they don't have babies so they are useless to produce milk for feeding.
Mike is soo lazy he never helps out with any work. Yeah he's as useless as tits on a nun.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.
After school, The Modells on Jamaica Ave was active. Respectfully.