A high school kid who spends time at elementary schools looking for hot 2nd grade boys to fondle.
did you see that brickshithouse leaving the school yard with that 7 year old boy?
A very big person, normally male who is as broad as he is tall yet carries very little fat. Not the sort of person you would willingly upset.
Term comes from the large brick built outside toilets once common in working class areas of the UK.