What is Y'know?
A filler word, inserted in oral speech. Similar words include
I'm not very good at public speaking, y'know. Like I get nervous y'know.
In southern regions, a conjunction of the words 'you' and 'know' - typically used either at the beginning of a sentence when either stating a fact or opinion, or to begin a question. Also used at the end of a sentence, when looking for confirmation that the listener understands or agrees with the statement.
"Y'know, I was going to fix that truck this weekend"
"Y'know how to get to i95 from here?"
"People in this world have gone crazy, y'know?"