This is the 19546th most frequent Korean word.
양팔이
"양팔이" means "both arms."
The word '양팔이' here denotes 'both arms,' referring to one's physical state.
양팔이 아프다.
Both arms hurt.
This usage expresses the state of both arms being unoccupied or free to move.
양팔이 모두 자유롭다.
Both arms are completely free.
This highlights the physical characteristic of 'both arms' as being long in length.