The Bakerloo Line 

Taking one up The Bakerloo Line is receiving a sexual act analy.

Mate, she was keen, she even took it up The Bakerloo Line

The Bakerloo Line by Bosh1985 January 20, 2015

taking the Bakerloo line to Harrow and Wealdstone 

Another terms for anal sex. On maps of the London Underground, the Bakerloo line is coloured brown. Harrow and Wealdstone is the station at the end of the line.

He and Dale Winton were taking the Bakerloo line to Harrow and Wealdstone.

taking the Bakerloo line to Harrow and Wealdstone by Web Willy April 7, 2003

Commuting the Bakerloo line 

When two men place the ends of a toilet roll tube into their bum holes and shit through it into each other's arses.

Last night I went over to Matt's and he told me to shove the end of a toilet roll tube into my arse. Once I'd done this he paced his anus on the other end and we proceeded to poo into each other. I asked him what we'd just done and he told me we'd just been commuting the Bakerloo line. We'd not even left the house.

Commuting the Bakerloo line by Noel Bussey February 8, 2008

ride the Bakerloo Line 

A British term for anal sex. The Bakerloo Line on London's underground system is shown as dirty brown on the map. To ride the Bakeloo Line means to enter the brown tube and take a journey.

Dude 1: "Hey, how's your new chick, Dawg?"
Dude 2: "Great! She'll even let me ride the Bakerloo Line!"

ride the Bakerloo Line by Wizards Sleeve January 30, 2007