This could be a reference to her behavior in FE Heroes.
A translation would help here. Well, at least the right side of this image. :D

I second that^

I just can't get enough of the instant_loss_2koma tag

(Suara kontol nabrak-nabrak)

What the meaning of this?

kudus said:

(Suara kontol nabrak-nabrak)

What the meaning of this?

indonesian that dick something-something
nabrak is probably plunging? I'm no indon so... someone rectify

Algester said:

indonesian that dick something-something
nabrak is probably plunging? I'm no indon so... someone rectify

suara = sound
kontol = penis
nabrak2x = slamming