>>648241035"mod" is a Greek derivative of the greek "modullaoblongada" which signals what posts you should save and repost
On 4chan it stands for:
More
Of
Dat
Sweetness
We use "MODS" whenever we stumble upon a pic we like. especially ones of preteens.
4chan lingo is notoriously lighthearted and fun!
Have a nice!
day.
