Definition of scrums:
(n) :
(rugby) In rugby union or rugby league, all the forwards joined together in an organised way.
(n) :
(software engineering) In Agile software development (specifically Scrum or related methodologies), a daily meeting in which each developer describes what they have been doing, what they plan to do next, and any impediments to progress.
(n) :
A tightly packed and disorderly crowd of people.
(n) :
(Canada) A tightly packed group of reporters surrounding a person, usually a politician, asking for comments about an issue; an opportunity provided for a politician to be approached this way.
(n) :
Hostile shoving between two groups.
(v) :
(rugby, intransitive) To form a scrum.