s - phase

when you start to feel a mix of horniness and excitment from your allocated senpai.

"omg she was walking down the hallway with her senpai and she was lowkey in s - phase"

(S-phase person): "omg uwu senpai you make me so emoshi and creami thx." "can i have kwisses and cwuddles pwease kitten"

s - phase

the moment in which you feel a mixture of horniness and look up to your senpai, performing anime like movements and expressions.

omg i saw her down the hallway and shes literally in s - phase. she called me senpai before. uwu.