squatter

squatter
n
1 person who sits in a squatting position 蹲著的人.
2 person who occupies a building or land without permission 擅自占用房屋或土地的人
    claim squatters' rights 要求获得擅自占房者应得的权利.
3 (Austral 澳) sheep-farmer 牧羊场主.

牛津英汉双解词典