I was reading this currently locked thread about an individual going by the name “cyclotouriste.” Zabali Clawbane points to an article in The Scotsman with more information about cyclotouriste. Here’s the paragraph I have questions about:At the time of publishing I have received no reports of any female, healthy, cyclists with a sense of bold adventure signing up for Cyclotouriste’s magical mystery tour. Now, normally this would just be chalked up at some guy having a bad day and going radio rental on a message board . . .
What does “radio rental” mean? How common a phrase is it? Thanks.