II.in [美 ɪn, 英 ɪn]副in often appears as the second element of certain verb structures in English (close in, hand in, stand in, etc). For translations, see the relevant verb entry (close, hand, stand, etc).
They barge in with way-out views that are set in concrete and manipulate the conversation to the extent that it's just too tiresome to even begin dialogue with them.