The basketball star is heartbroken over his wife filing for divorce last Friday (13.12.13), and further upset with his 15-year-old daughter Destiny - from a previous relationship - for saying on her Ask.fm page ''No one thought they were going to last, so honestly, who [cares].''
A source told In Touch Weekly magazine: ''When Destiny put that Ask.fm thing up, he was furious. He was screaming, 'What the f**k, what does Destiny think she is doing?' ''
Lamar then reportedly asked Destiny's mother, Liza Morales - with whom he also has 11-year-old Lamar Jr. - to make her apologise, but she refused, saying she was only speaking her mind.
Destiny also said during the Q and A session she doesn't want Lamar to get back with Khloe, who split from him in September after allegations of him taking drugs and cheating surfaced.
When a user enquired whether they will reconcile, Destiny responded: ''I don't want it to happen anyways. I have him all to myself now!''
When asked if she would still ''be cool with Khloe,'' she was quite clear in her response, simply writing: ''hahahahahahahahahahahhahahahahahhahahahahahhahahaa.''
Los Angeles Clippers player Lamar is currently in California, and it is unknown whether he will make the trip to New York to see Liza and their children over the festive period.
The source added: ''As of right now, he is probably going to spend it alone in Los Angeles. He might get an invite from his kids and Liza, but it hasn't happened yet.''
He also slapped a jet-lagged Taylor Hawkins.
The acclaimed performer had just cancelled touring due to a battle with cancer.