High School Block Out: When one with purpose hits the mental control/alt/delete to block out not so great memories or simply to remove clutter from the brain to store more useful information.
Another sentence scenario a former certain someone (name not to be mentioned) tries to friend you on FB and you receive this message "so and so wants to be your friend on FB" Reply "I'm sorry who are you again, I HSBO'd a shit load of ppl from HS and I can't seem to recall you, so you must have been deleted from my hard drive as being either A) unimportant or B) clutter; now which category do you fall under because now I'm going to have to dig up my yearbook".
Another sentence scenario a former certain someone (name not to be mentioned) tries to friend you on FB and you receive this message "so and so wants to be your friend on FB" Reply "I'm sorry who are you again, I HSBO'd a shit load of ppl from HS and I can't seem to recall you, so you must have been deleted from my hard drive as being either A) unimportant or B) clutter; now which category do you fall under because now I'm going to have to dig up my yearbook".
In a sentence "Hey, do your remember me I was in Speech with you"? Me, "Umm, no I not only HSBO (High School Block Out) you, but I HSBO'd Speech Class altogether, now piss off".
Another scenario a former classmate tries to friend you on FB and you receive this message "so and so wants to be your friend on FB" Reply "I'm sorry who are you again, I HSBO'd a lot of ppl from HS and I can't seem to recall you, so you must have been deleted from my hard drive as being either A) unimportant or B) clutter; now which category do you fall under because now I'm going to have to dig up my yearbook".
Another scenario a former classmate tries to friend you on FB and you receive this message "so and so wants to be your friend on FB" Reply "I'm sorry who are you again, I HSBO'd a lot of ppl from HS and I can't seem to recall you, so you must have been deleted from my hard drive as being either A) unimportant or B) clutter; now which category do you fall under because now I'm going to have to dig up my yearbook".
by Reverse Aging August 27, 2012
Get the HSBO (High School Block Out)mug. by weaponsgradevanilla November 13, 2022
Get the Brown Outmug. 
Get the out of youthmug. Angel Hellstrom Jose Robles I Root Out Answers Out Of Guesses, What Am I? Angel Jose Robles, ALso Know As, Hellstrom Imaweli Tanna: A Strategist
Angel Hellstrom Jose Robles I Root Out Answers Out Of Guesses, What Am I? Angel Jose Robles, ALso Know As, Hellstrom Imaweli Tanna: A Strategist
by TheGeneralGenitalsPranksterian May 10, 2025
Get the Angel Hellstrom Jose Robles I Root Out Answers Out Of Guesses, What Am I? Angel Jose Robles, ALso Know As, Hellstrom Imaweli Tanna: A Strategistmug. 
Make our day occurs on January 22nd on this day go out and make out (not just a peck) with whoever you want!!
by Princessss.123 January 18, 2020
Get the Make out daymug. Needed to return the EV rental with more than 70% charge, so we ended up hanging out at the supercharger.
by Nosyajg February 1, 2023
Get the Hanging out at the superchargermug.