folka

Etymology 2
From the noun. The adjective is likely a past participle of the verb.

Adjective

 * 1) populated
 * 2) manned

Noun

 * 1)  short for folkvagn, Volkswagen, the people's car, in particular the "beetle"
 * Fullt med folkor på Mantorp = Many Volkswagens at Mantorp (a racing track)