羅紗綿
1
sheep
2
foreigner's mistress
from the belief that Western sailors kept sheep on their ships for sexual purposes
See also:
洋妾 (ようしょう)
Other forms
羅紗緬 【ラシャめん】 (rarely used kanji form) · ラシャ綿 【ラシャめん】 (rarely used kanji form)