Answer: hornin

AnswerCrossword Clue
HORNINOpine rudely
HORNINIntrude
HORNINImpose
HORNINInterrupt
HORNINEnter without being asked: Slang.
HORNINIntrude: Slang.
HORNINMeddle: Slang.
HORNINInvite oneself to participate
HORNINEnter without permission