roughly translated in english, it means "do not urinate here." one can see this sign mostly painted on fences or building walls, and is meant to discourage men to just "go" anywhere.
one certain building in manila caught my attention as it was painted on almost all its sides with the sign, plus some variations. good thing that the building is currently under renovation; these signs will be gone when it's time to give the building a new paint job.

hey... can u read dis? dis sign is talking 2 u. yes, u, man!

the guy who did this couldn't be more emphatic...

...in forbidding men to urinate on this particular doorway.

i wonder if the person who wrote this got one peso for every guy he catches urinating on this wall...

and the person who wrote this must be richer than the first one.
punishment awaits the unfortunate man who dares urinate here.

full frontal view of the sign (taken on another day)
:-)