Da Vinci's Cradle (DVC) is the sensational feeling of euphoria and ecstasy in a man's genitals that occurs during extreme falls and especially thrill rides at theme parks.
"Oh hell yes, that ride gave me extreme Da Vinci's Cradle!
A 'crawlleague' is a co-worker or colleague whose lack of self-respect and character forces them to spend much of their working life, and their sad, sad social life on their knees.
Employee #1: Wow, that guy seems to be a rising star in your firm. Every time I visit your office he's hanging on your bosses' every word and staring at him with those big doe eyes.
Employee #2: Yeah, my 'crawlleague' is a real tool alright.