It's when a tweet get's more like's then the other but the orginal tweet needs to be lower than the poplution of the vaquita and the ratio giver tweet need's to be higher than the Javan rhino.
Twitter user: replace Dream is sucks with Women dosen't seem funny now is it? 3 likes
Chad:Ratio 102
Twitter user 2: Holy fuck that ultimate ratio you destroyed them!
As a successful ratio is defined by how a reply has more likes to a tweet/comment it is replying to, a successful anti-ratio is defined by how a reply has less likes to a tweet/comment it is replying to.
"Wtf is an anti-ratio?"
"Anti-ratio deez nuts"
"I ratio'd you realhard."
"No b*tch, I anti-ratio'd you real hard."