1 definition by BlickBoiZach
Inserting a tube down your urethra while masterbating, switching your ejaculate for hot gravy, creating a great side for your fish and chips.
Boy- "Baby im hungry can we do a London Switcheroo tonight"
Girl- "Sure I'll get the tube, call John and tell him to to pop to the chippy"
Girl- "Sure I'll get the tube, call John and tell him to to pop to the chippy"
by BlickBoiZach March 20, 2018