Whip

Transformers sometimes use whips as melee weapons or as 'motivational tools'.

Fiction

Generation 1 cartoon

• Megatron occasional uses his Omega Whip against his enemies.

Beast Wars

• Transmetal Cheetor is armed with a whip.
• Transmetal Rattrap as well.
• Transmetal Packrat, being a repurposed version of a redecoed Tramsmetal Rattrap toy is also armed with a whip.
• Botcon exclusive Transmetal Tigatron is a repaint of Ravage, which is itself a retool of Transmetal Cheetor, so he is armed with a whip as well.

Armada

Armada used several Beast Wars molds and added Minicon ports to them, which resulted in several characters being armed with whips.

• Predacon, being a retool of Beast Wars Transmetal Megatron is also armed with a whip/claw/arm cannon.
• Cheetor is still armed with a whip.

Cybertron

• Overhaul's tail turns into a claw-whip in robot mode.