Mars Bar
⇨ Mars Bar; marsnoun
1
the penis. Extended from the shortened form of rhyming slang MARS AND VENUS (the penis), playing on the name of a famous branded item of confectionery that helps you 'work, rest and play', apparently UK, 1992.
2
a scar. Rhyming slang, after a popular chocolate confection introduced to the UK in 1932 UK, 1985