Flámæli

Slanted speech (Flámæli (also flámælgi and flámælska) was a sound change which was widespread in the first half of the 20th century in Iceland, especially in the West and South. The vowels and  (written $⟨i⟩$ or $⟨y⟩$ and $⟨u⟩$ respectively) were lowered so that vinur  was pronounced  (as if written $⟨venör⟩$) and skyr (, a kind of yogurt) as  (like $⟨sker⟩$), while the vowels e and ö were raised such that spölur   sounded like  (as if $⟨spulur⟩$) and melur  as  (as if $⟨milur⟩$).

This sound change was thought to be very ugly and called hljóðvilla. It was prominent from 1940 in the speech of people from the Southwest and the Eastfjords, but also in the North and in Húnavatnssýsla. A special campaign was carried out during 1940–1960 in primary schools to eliminate flámæli. RÚV and Þjóðleikhúsið enforced a policy that the so-called phonological error would not be allowed. In 1929 42% of children in Reykjavík spoke with flámæli but by 1960 it had been eradicated among children.