The phrase "old springer" refers to someone who is experienced or skilled in a particular field. It suggests that the person has been doing something for a long time and has a lot of knowledge and ability in that area. Full definition
3.5 year old springer spaniel bitch who has wet herself a few times Not rated yet Milly has been to the vets and prescribed antibiotics for a temperature and because of wetting. (love-springer-spaniels.com)