Jon Cryer's Ex-Wife -- Rich Kids are Humiliating Our Son ... I Need $88K a Month

Jon Cryer's ex wife claims their 13-year-old son is becoming the object of scorn and ridicule at his exclusive private school because the other kids have a caviar lifestyle and she's forced to live in the world of spam ... and that's why she's asking a judge to squeeze $88k a month from Jon in child support.

Get ready to throw something at the computer (or mobile device), 'cause this is gonna piss you off.

Sarah Trigger has been getting a measly $8,000 a month in child support since 2010. It galls her that Jon is making a fortune on "Two and a Half Men" -- she claims $2 mil a month!

Sarah says life is awful. She says her son Charlie can't afford the ritzy summer camps his friends attend. She says Charlie's friends go on "exotic vacations in the summer and winter like Europe and Thailand." He can't go.

It gets worse. Sarah says Charlie's friends at The Buckley School have "huge birthday parties at expensive places like Sky High Sports and they invite the entire grade." And worst of all ... the Bar Mitzvahs. Sarah says, "Last year there were multiple Bar Mitzvahs and Bat Mitzvahs all with custom invitations, a dress code and huge private receptions afterward."

Sarah says Charlie is feeling the pain, and so is she. Sarah says when she got child support back in 2010, she only had custody 4% of the time ... and that's why she only got $8,000 a month. Now she has custody 50% of the time, so she wants a cool $88,969 a month.