yüksek bir hızda

listen to the pronunciation of yüksek bir hızda
التركية - الإنجليزية
(deyim) hell-for-leather
as fast as possible; recklessly fast

He rode hell-for-leather to catch up with the stagecoach.

at full speed or with great speed
with all of one's energy, will, etc.; with wholehearted or reckless determination
at breakneck speed; "they were travelling hell-for-leather
at breakneck speed; "they were travelling hell-for-leather"