A male between the ages of 19 and 31 that is usually the boyfriend of a single mom. They are usually too immature to act as a role model and have a tendency to either be too inept to help watch children and do other parent stuff, thus becoming a burden; or will beat/kill a child over something that's not a big deal, for example, a video game.
Person no.1: did you see her boyfriend
Person no.2: yeah, dude looks too much like he could be a step-manchild
Person no.2: yeah, dude looks too much like he could be a step-manchild
by Caesar_Destroyer_of_Normies January 14, 2019
Get the step-manchildmug. To high step a mother fucker! To leap frog someone by means of taking from someone who you think isn’t worthy of the bag.
“I heard they was high stepping on Hoss he sent them with 500 and they straight high stepped him and got themselves a bigger bag🔝😆”
by Berry noberry August 17, 2022
Get the High steppingmug. 
Get the step-co-niece-in-lawmug. The act of stepping over/around vacuum cleaner cords while vacuuming, sometimes in an erratic manner, depending on the lay of the cords.
The vacuum cleaner cords got so tangled and twisted under my feet I had to do the Janitorial Two-Step to not trip over them.
by denshanosenshi September 8, 2019
Get the Janitorial Two-Stepmug. Man, I just found out that my second cousin isn’t my second cousin. She’s my step second cousin cause she’s not blood related to me.
by AntiCircumcisionMan November 7, 2020
Get the Step Second Cousinmug. My step-great-great-grandparent is a good person.
by User655 July 25, 2021
Get the step-great-great-grandparentmug.