Jay's tattoo behind his ear was seen previously but official pictures from the tattoo parlor have been posted up on the tattooist's cyworld  revealing his chest tattoo.

His previously posted AOM tattoo:

 
Apparently his

And his chest tattoo:


 
It says:

Always Come Proper
1955. 60. 87. 89.

The numbers are the birth years of his family members listed in order. The meaning of the tattoo is that he'll always remember his family and he will remember to act properly.
Picture of the tattoo artists and people that went with Jay to get his tattoo:


 
The girl in the picture and the first picture is one of the tattoo artists.

cr: source 
kyungsan@omonatheydidnt