noun sexual intercourse.
2. tailing ·noun ·same·as tail, ·noun, 8 (a).
3. tailing ·noun the part of a projecting stone or brick inserted in a wall.
4. tailing ·noun the lighter parts of grain separated from the seed threshing and winnowing; chaff.
5. tailing ·add. ·noun a prolongation of current in a telegraph line, due to capacity in the line and causing signals to run together.
6. tailing ·noun the refuse part of stamped ore, thrown behind the tail of the buddle or washing apparatus. it is dressed over again to secure whatever metal may exist in it. called also tails.