tie a breast
In French, the phrase 'attacher un sein' can be understood literally, but it's not a common expression. The verb 'attacher' means 'to tie' or 'fasten', while 'sein' translates to 'breast'. This phrase might be used in a very specific context, often not in everyday conversation, and could refer to securing something in place or discussing topics related to motherhood or breastfeeding in a more abstract conversation.