1. To allow someone to have a share or profit.
2. To drive in front of another vehicle leaving too little space for that vehicle to maneuver comfortably.
3. To interrupt a dancing couple in order to take one of them as one's own partner.
4. To mix in with cutting motions.

(Film) A still inserted and interrupting the action; (broadcasting) a local announcement inserted into a network broadcast; SYN. insert.