Doing the Waitaki Bridge 

Getting in a relationship with a much younger person, usually one not out of school.

Look he's doing the Waitaki Bridge with her, 44 year old male trying to go out with a 17 year old female.

Usually pertaining to a person of predatory behaviour.

Doing the Waitaki Bridge by Rat Bite July 28, 2012

sucky sucky wantan 

the wanting to get Tea bagged or just suck on an Asian mans balls

you want to sucky sucky wantan on him

sucky sucky wantan by DAT 1 M8 March 5, 2019