Ignoranus

A funny way of saying ignoramus

-Ignoramus
-Huhu, you said Ignoranus
-No, I did not
-Yes, you ignoranus

ggs

Short for "good game suckers". Used in game chats as an alternative for gg which as everyone knows means "good game". However, ggs has no commonly known or agreed-on meaning, although it is a popular choice nonetheless, therefore its meaning must be the most obvious one.
A much more condescending version of gg.

Can also be used in a harmless, nice way, no doubt, which has no real meaning and might be chosen because ggs might look more appealing than just gg or the s could be used for plural.
It could also be used less in a condescending but teasing way because it might be interpreted as "suckers" or something harmless and because the meaning is unknown.

Even if its game meaning is a minor curiosity of some unclarity, ggs originally was used for "Gungan Supermacy".

After the other side has lost a multiplayer match
ggs