trembling or gritting of the teeth in response to a situation that overwhelms your self-control
When a Filipina sees a baby that's so cute, she gets so overwhelmed that she wants to pinch the baby's cheeks and has a hard time controlling herself. What she's experiencing is called panggigigil.
Nakakagigil talaga ang bata.
That child is so frickin' cute!
(So cute I have to grit my teeth to keep myself from pinching his cheeks off.)
You're so frickin' cute I can't help myself.
It is not necessarily cuteness that provokes this response. Sometimes, when you get frustrated with someone, you can have the gigil reaction to the person too.
Having a hard time controlling oneself because of cuteness, frustration etc.
I am having a hard time controlling myself because of cuteness, etc.