Mamundok (en. To bury)
/mamadok/
Slang Meanings
to lose knowledge or experience in something
Oh no, it's like she went to the mountain in mathematics; she seems to know nothing about equations.
Naku, parang namundok siya sa matematika, parang wala na siyang alam sa mga equations.
to be rendered ineffective, not to succeed
It seems our plans for the reunion are going downhill again; nobody has talked yet.
Parang mamundok na naman ang mga plano natin sa reunion, wala pa ring nagkausap.