A slang term used to describe an extremely desirable object, outcome or proposition, usually where 'awesome', 'amazing' or 'incredible' will not suffice. Accompanied by reaching ones hand out, palm skyward and fingers slightly curved inwards, to reinforce the gesture.
Not to be confused with Praying Mantis.
"man that guitar solo is Mantis!"
"Did you hear about Tondi's new 6 cylinder car; it's freakin' Mantis!"
"How was that 1 kilo steak you had for dinner last night?"
"She gave me a hummer....Mantis!"