Turco-Albanians are people who have both Turkish and Albanian ancestry. This means that their family trees have both Turkish and Albanian people in them. This can occur because of historical events that caused Turkish and Albanian cultures to mix together and intermarry.
For example, hundreds of years ago, the Ottoman Empire ruled over Albania and other neighboring countries. During this time, Turkish soldiers and officials would often come to Albania and marry local Albanian women. This mixing of cultures and families has continued over time, resulting in the turco-albanian people we see today.
Being turco-albanian means that a person may have cultural influences from both Turkey and Albania. They may speak both Turkish and Albanian languages, and may practice traditions and customs from both cultures. It's like having two different cultural heritages that are blended together.