wicked yank

a wicked yank is when you ain't jerked off in a while and your roommates are gone so you light a candle and take a trip to wonderland, just you and your shmeat having a little yank together

"yank" is an abbreviation of "yankin tha shi," a euphemism for jerking off
"wicked" refers both to the sinful nature of the activity, and the fiendish gusto with which it is carried out

"hey man how was your weekend"
"pretty good! i had a WICKED yank on saturday and then i hit the gym"
"haha cool"

siu

an exclamation, popularized by cr7 when he screamed it waay too loud
used to show enthusiasm, or just to make noise
can also be spelled suiu, soii, or SIIUUU

Teacher: "aaaand, class dismissed!"
Student: "siu!"

Beanis

A penis that is the size and shape of a small kidney bean, and/or someone whose penis smells like beans
President George is the most famous "beanis"

"He's kinda cute..."
"Watch out, he's got a beanis... unless you're into that...?"

Shang

Can be used to refer to an object or person, i.e: "Pass me that shang" or "Shang was telling me..."
Can also be used to communicate enthusiasm, perhaps as a less effeminate form of "slay": "You shanged that!" or "he shangin"
"he shanged me" could mean "he ripped me off"
Honestly it doesn't really mean anything, you can use it however you like and it's entirely dependent on context
"that shit shangin" could mean it's amazing or terrible

"Hey, look at that shang over there!"
"wow!"

"shang told me he knew a spot"

"quit shangin"

"that shit shangin"

"on god he a shanger"