spurt 
(spûrt)
(spûrt)n.
1. A sudden forcible gush or jet.
2. A sudden short burst, as of energy, activity, or growth.
v. spurt·ed, spurt·ing, spurts
v.intr.
1. To gush forth suddenly in a jet.
2. To make a brief intense effort or show a sudden increase in activity or speed.
v.tr.
To force out in a sudden jet.
[Origin unknown.]