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1.More of a new yorkers(between homeboys) way to open a story or talk about something that happend,2. To draw attention to by cutting off in-mid conversation.
1.YO SON..you see that bitch try*na dance, that shit was mad funny yo.

2. ''im telling you i was'',,,, YO SON i was there and and you never came, yo Son you be Stright Lieing.
Yo Son by Bleep apb March 9, 2009
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When you drop the letters U and R from your, and apply the word son, then decide not to publish the definition, because apparently the word "boxxhenizeel" was so much better.
Josh: I defined yo son on urban dictionary
UD: NO SON YOU DIDNT! HAVE A BOXXHEINIZELL DAY!
yo son by joshua mcmuffin April 14, 2008

Yo son, stop sittin around eatin oreos and get over here. 

Pertains to someone who is slacking off or not doing what one is supposed to be doing. Procrastinating, putting things off, slacking.
Yo son, stop sittin around eatin oreos and get over here.

You yo daddy son 

A slag for calling someone ugly as referring to there family mainly their father as unappealing to others.

A term or saying that you use in calling someone out or poking fun at colleagues.
"You ugly ass mofo no arm lookin ass you yo daddy son."

"Your so ugly you yo daddy son."
You yo daddy son by Liam Franklin September 30, 2016

yo my son 

Meaning somebody is a mini you or just act a lot like you
Bryson: I’m going to buy these grills

Dex: ima buy em too they hard

Bryson: Yo my son ! U tryna be like me lol
yo my son by Hhttpp.someone October 29, 2017

You yo daddy son 

Basically an insult calling you and your father ugly.
-(Explanation)-
You and your father look alike, and are genetically related, so (typically), if someone were to say “You ugly, you yo daddy son.” They Are calling you ugly initially, then linking that same adjective to your father.
Yo face nasty.
And you ugly and you yo daddy son.

Fuck yo momma's son

Literally meaning FUCK YOU also dissing your mom at the same time. Since on the internet most of the people who will ever use this term is saying it to guys.

the list can go on maybe
Fuck your momma's son
Fuck your mum's daughter
Fuck your mum's whole family
Guy1:dude what the fuck is your problem

Guy2:YOU KNO WHAT FOO!

Guy1:What...

Guy2:FUCK YO MOMMA'S SON

Guy1: WHAT YOU WANNA FUCK ME ?

Guy2: omg you kno what i meant.
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Ajumma wait a moment
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