saber lá
Portuguese
Etymology
From saber + lá, where lá serves as a negating particle.
Verb
saber lá (first-person singular present sei lá, first-person singular preterite soube lá, past participle sabido lá)
- (idiomatic, colloquial) to have no idea
- Sei lá! ― Beats me!
- Eu sei lá quantas maçãs ele comprou! ― I have no idea how many apples he bought!
- Ele sabe lá, ele nem sequer estudou a matéria! ― He has no idea, he hasn't even studied the subject!