Analogous to "All Bark, No Bite". A person who is a loud, obnoxious, overly aggressive jackass, but without anything to back up the behavior. It's is like having a thick two-inch dick with a huge head, impressive to the owner but basically useless.
"Look at this feeble dork acting hard and trying to boss everyone around;
N. (1) Person whose sole responsibility it is to maintain SALs, toilets, heads at recruit training also known as kingshitter or poomaster.
(2) Person with a really bad hair hygiene allowing their hair to emanate a very potent 'shit' like odour
Headshitter!
Yes corporal
Begin!
Yes corporal
A team clean the urinals B team clean the showers the rest of you do the sinks and bins
Ack headshitter!
1. Another form of the insult "dumbass".
2. When your teammate makes a good headshot and kills the enemy, you want to compliment his kill but you lost your track of words.
_TyrOne-_ :*makes a good 360° headshot* wow i was lucky
xXx_LoVer_BoY_xXx :Wow Tyrone that was...was...a nice...headshit man! *kills himself of embarassment*