I guess it was only a question of time before someone wrote a programming language in LOLcat [1] dialect [2]: LOLcode [3].
This listing, for example, prints out the numbers one to ten:
HAI
CAN HAS STDIO?
I HAS A VAR
IM IN YR LOOP
UPZ VAR!!1
VISIBLE VAR
IZ VAR BIGR THAN 10? GTFO. KTHX
KTHX
KTHXBYE
They has a funny…
