Get the 9/11mug. 
Get the .9.Here "'We'" Zay.9.mug. A sexual act where the guy is laying on the bed with his penis pointing to the ceiling. Then after a random amount of time, the girl (literally) runs into the area between the legs of the guy, ferociously licking his butthole and sucking his testicles and dick until he cums.
Friend 1: "Aye man, you hooked up with Steph over the weekend?"
Friend 2: "Yeah man."
Friend 1: "Nicee how'd it go?"
Friend 2: "Surpisingly, she was 9/11-ing me all night."
Friend 2: "Yeah man."
Friend 1: "Nicee how'd it go?"
Friend 2: "Surpisingly, she was 9/11-ing me all night."
by HentaiLover69420 February 2, 2017
Get the 9/11-ingmug. 
by Pac12chatmember September 5, 2021
Get the 9/4/21mug. Vulgar
Used in Hong Kong
Pronunciation: "gau" (the number "9" in Cantonese)
Literal meaning: penis (n.)
Pragmatic Meaning: stupid; pointless; ridiculous; making something pointless, ridiculous or useless
Usually used as an adjective or an adverb in Hong Kong English
More: on9, on99, 9gag,
Used in Hong Kong
Pronunciation: "gau" (the number "9" in Cantonese)
Literal meaning: penis (n.)
Pragmatic Meaning: stupid; pointless; ridiculous; making something pointless, ridiculous or useless
Usually used as an adjective or an adverb in Hong Kong English
More: on9, on99, 9gag,
Adj.: This idea is 9. (This idea is stupid.)
Adj.: 9 people make 9 suggestions. (Stupid people make stupid suggestions.)
Adj.: I won't take the 9railway. It costed Hongkongers a bloody USD$8.60 billion for a slower train service with collapsing terminals. (I won't take High-Speed Rail Link between Hong Kong and China. It costed Hongkongers a bloody USD$8.60 billion for a slower train service with collapsing terminals.)
Adv.: "Tag 9 him." (Fucking tag him on Facebook)
Adv. & Adj.: "I 9did my assignment. It was a 9 topic anyway." (I not-giving-a-fuck-did my assignment. It was a ridiculous/pointless/stupid topic anyway.)
Adj.: 9 people make 9 suggestions. (Stupid people make stupid suggestions.)
Adj.: I won't take the 9railway. It costed Hongkongers a bloody USD$8.60 billion for a slower train service with collapsing terminals. (I won't take High-Speed Rail Link between Hong Kong and China. It costed Hongkongers a bloody USD$8.60 billion for a slower train service with collapsing terminals.)
Adv.: "Tag 9 him." (Fucking tag him on Facebook)
Adv. & Adj.: "I 9did my assignment. It was a 9 topic anyway." (I not-giving-a-fuck-did my assignment. It was a ridiculous/pointless/stupid topic anyway.)
by DrDtheHKlishGuru March 17, 2019
Get the 9mug.