when someone is urinating with an erection and the basketball shorts they had pulled away involuntarily spring back and send urine flying in all directions onto the person.
Rusty- why does jeff have water spots all over his shirt?
Tyler- I think he had a surprise springback.
Rusty- hmm, definatley.
Tyler- I think he had a surprise springback.
Rusty- hmm, definatley.
by amazawaliisdead July 20, 2009
Get the surprise springbackmug.