Railgun
Railroad track +gun =
A gun being shot into a land post.
a gun that shoots out urine.
Water gun shooting a persons piss.
squirtgun
An older person (though not an adult) is killing Tommy Pickles with a pellet gun that is incorrectly labeled "SQUIRT"
Fuk u Eric.
Battle damaged man criticizes his fellow soldier.
Doodle or Die is the game of "telephone" with drawing!