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1.
Infamous unit from Starcraft. Small, fast, deadly, and the bread and butter of any Zerg Rush.
I was going to expand but his Zerglings stopped me.
by iggy July 26, 2003
 
2.
Sexiest alien ever. A six-limbed raptor bristling with scythes. Great for eviscerating marines, but sucks against fire and energy swords. A very popular creature from Starcraft.
Nydus to base + mass zerglings + full upgrades = cheapest. win. ever.
by Daz April 14, 2005
 
3.
Smaller type of zerg
It's zergling lester, smaller type of zerg...
by Polariss January 01, 2006
 
4.
A disposable unit used in an attack. Originally the smallest combat unit of the race The Zerg in the computer game Starcaft it is now used to describe any such insignificant unit, especially ones sent in large numbers.
There are like 50 3rd level characters trying to kill that level 15 mob. Go my little zerglings, go!
by spandox August 17, 2007
 
5.
n.
A inexperienced and/or ignorant or unskilled person.

Or:
A person who, regardless of experience, lacks skill or competence.

Or:
A new entrant into the Horde.
Man this forum has been flooded with zerglings.

They can't even feed themselves let alone use google.
by Zerg_547961 June 24, 2013