Biraz degil bayaa biliyorsun.

It´s not a little (bayaa ?) you know...o.O? 

bayaa = baya = a lot

Peki,teşekkür ederim Gokuyum Hocam. Ellerine sağlık. Sizsiz birşey öğrenemem.

Bende hayrimak istiyormusun?
It doesn´t make any sense to me.. Hayrimak verb doesn´t even exist... 

Yes it doesn´t make sense. Maybe he wants to say "Benden ayrılmak istiyor musun?" But I must say his Turkish is not acceptable.

"bayaa" or "baya" is misspelled spoken turkish. correct form is "bayağı" but hard to pronounce, so we go to easy way as usual

it is meaning evolved in time, too. originally it measn ordinary, simple...

example: bayağı kesir: ordinary or simple fraction