It's a joke that has been running pretty much since the modern car was made available to the masses: if you've got a big-ass car, you're obviously trying to make up for a small dick.
Well, four-wheel-drivers in Birmingham might have looked twice while travelling through Sherlock Street because of a very cheeky billboard.
Snapped by street artist Foka Wolf, the poster read: "Do you drive a 4x4, Jeep or Range Rover in the city? You could be entitled to FREE penis enlargement therapy on the NHS."
The billboard could have stung one motorist or two - especially considering there were a few four-wheel-drive owners who were offering their services when the Beast from the East caused some roads to shut down.
When it was uploaded onto social media, people were very quick to highlight that very point.
According to the Metro, one user wrote: "I'll ask the nurses and doctors about the treatment next time i am driving them home at 7.30am or picking them up at 6pm in the snow. Think a 70+ round trip is my longest and four drop offs in one trip the maximum.
Just to be clear: you definitely can't get a dick enlargement on the NHS - that service is only available privately.
So don't go trying to call that number to book an appointment because you could have a person on the other end of the phone either very confused or in stitches laughing and no one wants that - do they?
Apparently, the number doesn't even work so we saved you a few precious seconds.
Plus, you shouldn't stress too much about the size of your Johnson.
On NHS Choices, Professor Kevan Wylie says: "Many men who worry about the size of their penis generally have overall body image issues. What happens is that they tend to focus their poor body image on their penis.
"Often, counselling can make a real difference to the patient by building self-esteem, correcting distorted views about body image and learning more about what makes people attractive."
There are even tips for what you can do to seemingly 'increase' your penis: trim your pubic hair and lose weight.
"A big mound of pubic hair can make your penis look smaller than it is...a beer belly hanging over your penis can make your penis look smaller."
There you go, next time you look south and get upset, do those thing and see if it makes a difference. Whatever you do, don't call a random number on a billboard promoting free penis enlargements.
Featured Image Credit: Foka WolfTopics: Viral, Funny, Community