a red headed stepchild's rental mule 

Something or someone needing or getting a very severe beating.

The next time l catch you punks hanging around my girls, l will beat you like a red headed stepchild's rental mule!!!

a red headed stepchild's rental mule by I, Wreckerrr October 10, 2016

Macguyver's Stepchild 

An extremely clever individual with very little formal education. Someone kind of like Will Hunting, except more badass.

A child is scolded for coloring outside of the lines. Instead of attempting to color within them, they propose an argument that questions whether or not the lines even exist. This is "Macguyver's Stepchild"

Macguyver's Stepchild by Pr1m September 14, 2010

getting treated like a stepchild

IN BRIEF: In most cases, getting treated unequally, unethically, unfairly or unjustly.

1. Receive inappropriate or limited care, respect, or attention.

Most people can't take getting treated like a stepchild.

getting treated like a stepchild by Mr. Terrence L. Trezvant March 24, 2007

red headed stepchild 

A child who is obviously not your own, a child who is treated worse than other children in the family

I beat him like a red headed stepchild.

red headed stepchild by Vindriss December 28, 2005

red headed stepchild 

With red hair being rare, a child born to non red headed parents was often assumed to be the child of an affair. Thus was treated badly, usually in the form of beatings.

I'll beat you like a red headed stepchild.

red headed stepchild by Little Red Knitter January 28, 2009

red headed stepchild 

A person or group treated without the favor of birthright.

The boss treats this department like his red headed stepchildren.

red headed stepchild by Tim September 13, 2004

beat my cock like a ginger stepchild

Expression used to describe vigourous acts of masturbation with no regard for possible reprecussions such as friction burns or wanker's cramp.

Shlonglinator: I've got an awful horn. Think I'm going to head home and beat my cock like a ginger stepchild

Lads: You mean meeting gemma......

beat my cock like a ginger stepchild by Elburno September 20, 2009