Lamar Odom — Signs Point to Crack Binge … During Bizarre Phone Call with Khloe On ‘Keeping Up with the Kardashians’

Crack undertones on “Keeping Up with the Kardashians” last night … when Khloe took a bizarre phone call from a confused Lamar Odom … and couldn”t deny that something was clearly wrong.

During the scene, Lamar demands to know Khloe”s location — because he was told she was at another location doing something wrong.

But Khloe shoots back — saying, “You keep calling me at my mom”s [house] so you know where I am.”

Khloe, clearly annoyed with Lamar, says he”s not being “logical” — and then starts making excuses for him … saying he seems “tired.”

At one point, Khloe tells Lamar … “Listen, you”re buggin” just a little bit.”

It”s unclear when the scene was shot — but as we previously reported, Lamar”s been struggling with crack for a while … going out of his mind on multiple binges.