Seffered 

Sexually frusterated;Psychologically horny.

I'm seffered. Her clit is taunting me.

Seffered by The True Legit Wise Ones May 28, 2010

Sheffered 

To be screwed over by your co-worker; To be affected negatively by a co-worker that makes you contemplate suicide

“Dude, when I got on shift today I found out I got Sheffered by Sheffer! I’m going to kill myself”

Sheffered by Tester Testorino March 3, 2020