can someone tell me that this means
 

It better be Chinese, because in Japanese it is two parts of the three that mean
"visitor" or "sojourner"

滞在客

What do you think it means?

What a weird tattoo.

it was supose to say Zack in english but i know it does not say that

how the heck is that Zack in english. you can't translate chinese/japanese or mostly any asian name to an english name.

Zack in Japanese is

ザック

sorry i can't help i don't know any kanji

Yeah, Zack(ary) means "existed guest" in this tattoo's case.

I think its the sound of the words that make up his name.
In chinese, the word is pronounced 'Zai Ker' [sounds like zack]
therefore it's a CHINESE tattoo, not a japanese one.