Word used just about never by Older people, adults
noun • A child who is the youngest of their siblings and born many years later. There might be an 8 year gap between the "attpåklatt" and their siblings
"Søstera mi er ni år yngre enn meg" "Så hun er en attpåklatt da"
"My sister is nine years younger than me" "So, she's an attpåklatt then"
Added January 2021 by anonymous