Quote Originally Posted by Sky Shadow
It's short for picKUP truck. You know that.
Not in 1986 I didn't! I'm not sure when I became aware of that, but I don't think it's immediately obvious (as evidenced by Lord_Zed's and 1AZRAEL1's comments).

Other amusing names:
+ Nexus Maximus <---while the name itself isn't inherently funny, the circumstances surrounding it is hilarious.
+ Dark Scream's original Japanese name is Gildo. Gee, what could that rhyme with?! I noticed that TFwiki conveniently spells it "Guildo" - but anyone who can read Japanese can see that it's pronounced as "gildo." Only one letter away from being oh-so norti.
+ Gusshar's Anglophone RiD name is Slapper -- and we all know what that can mean.
+ Night Slash Cheetor. It's Cheetor evacuating his bladder after dark!! (^O^)
+ RiD Prowl's voice actor's name is Wankus -- which _is_ actually an amalgam of the words "wanker" and "doofus"... the RiD ending credits actually list him as "Wankus", and not his real name! And if you think he's the first adult film entertainer to become a TF voice actor, think again.