I wonder about the meaning of word len..is it a kind of slang

teşekkür ediyorum

I think the word is lan

It means buddy, bro (American) mate (Australian, English)

See this discussion

Apparently it is used amongst males 

çok sağol Henry, ben de öyle düşündüm ama emin değildim

and another one if you please

could be havan translate like alcohol, drinks

The only word I know for alcoholic drinks is içki

Some people behave like animals (hayvan) when they drink too much.

Maybe there is an alcoholic drink in Turkey with a similar name.

Havana Club sell rum, and drinks mixed with rum.

Sorry I can´t help more with this question

your answer helps me..I didnt think at Havana Club but you are right..thank you again..iyi geceler