the mother of all something

US /ðə ˈmʌðər əv ɔːl ˈsʌmθɪŋ/
UK /ðə ˈmʌðər əv ɔːl ˈsʌmθɪŋ/
"the mother of all something" picture
1.

ibu segala, yang terbesar, yang paling ekstrem

used to refer to an extreme example of something, often the largest, most impressive, or most difficult one

:
The final exam was the mother of all tests.
Peperiksaan akhir adalah ibu segala ujian.
They faced the mother of all traffic jams on their way to the concert.
Mereka menghadapi ibu segala kesesakan lalu lintas dalam perjalanan ke konsert.