Definition of straggles:
(v) :
To move along slowly so as to remain some distance behind the person or people in front.
(v) :
(intransitive) To stray, rove, or wander from a normal course and others of its kind.
(v) :
(intransitive) To act in a disorderly and irregular way.
(n) :
An irregular, spread-out group.
(n) :
An outlier; something that has strayed beyond the normal limits.