A Girl Who Can't Speak Thinks "She Is Too Kind." - Vol. 2 Ch. 20 - Summer Goals

[justforthelulz]

@Saloria_Stralli

It's dynamite! ...Beyond that, I don't have a clue.

You're thinking of 'TNT', which actually isn't the same as dynamite at all, a common confusion that isn't helped by depictions of explosives in cartoons and games freely mixing up the two.
Another user answered the meaning behind 'TMT' here.

 

[210astat]

Thank you.

 

[hori_hoe]

TOWA ETANALL-SAMA

 

[Paradox_Turtles]

TMT