Timbaland -- Lifetime Deserves the Heat ... For Crappy Aaliyah Biopic

Timbaland clearly thinks Lifetime deserves every ounce of crap being flung their way for the Aaliyah biopic that premiered Saturday ... and during his attack on the network, no digital punches were pulled.

The rapper/producer went on a social media rampage last night urging people to boycott the "Aaliyah: The Princess of R&B"... using a slew of hilarious memes.

Once the movie was over -- Timbo had no problem gloating to fans who watched the flick anyway -- taunting them and the network with a funny video post.

Timbaland wasn't the only celebrity who had choice words for the movie ... DL Hughley also chimed in -- saying, "Aaliyah is the Soul Plane of Lifetime!"