Definition of stints:
(n) :
A period of time spent doing or being something; a spell.
(v) :
(transitive) To restrain within certain limits; to bound; to restrict to a scant allowance.
(n) :
Quantity or task assigned; proportion allotted.
(n) :
Limit; bound; restraint; extent.
(v) :
To assign a certain task to (a person), upon the performance of which he/she is excused from further labour for that day or period; to stent.
(v) :
(intransitive) To be sparing or mean.