Interpose

casser le fil

(to interrupt a conversation by introducing a different subject or making a comment)

couper

(to interrupt a conversation by introducing a different subject or making a comment)

intercaler

(to insert something (or oneself) between other things)

interposer

(to insert something (or oneself) between other things)

interrompre

(to interrupt a conversation by introducing a different subject or making a comment)

s'interposer

(to intervene in a dispute, or in a conversation)

se jeter dans la mêlée

(to intervene in a dispute, or in a conversation)

se mêler à

(to intervene in a dispute, or in a conversation)

semer la merde

(to intervene in a dispute, or in a conversation)