Well, you’re right. We Southerners have another word for “turn“, which is “quẹo”. So for “turn left” and “turn right“, we say “quẹo trái” and “quẹo phải”. The word “quẹo” is pronounced as [kweo] with the low heavy tone.
Is the T silent in exactly?
In practice, yes it is virtually silent unless one makes a special effort to pronounce it. When we have a consonant cluster here /ktl/ one sound is often not heard. The linguistice term for it is “dissimilation”.
David Nilsen is the former editor of Fourth & Sycamore. He is a member of the National Book Critics Circle. You can find more of his writing on his website at davidnilsenwriter.com and follow him on Twitter as @NilsenDavid.