Manumpa (en. To swear)

/maˈnum.pa/

Slang Meanings

To lie or make a false promise.
Are you really serious with that oath? You've messed up again.
Seryoso ka sa ganung manumpa, nagkamali ka na naman.
To back out or not fulfill what was said.
That's why the plan didn't push through, because he's going to back out.
Kaya pala hindi natuloy yung plano, kasi manunumpa siya.