A name that can be addressed to a tall male who has a humourous and 'nerdy' disposition. Can also be a code word for some boy you fancy. A very off-putting (and frankly confusing) name for those randomers who are secretly eavesdropping your convo.
"You seen "Mackeral Mike" lately?"
"Nah, he hasn't cycled past my house in days"
"I thought you had a thing...?"
"Yes, we do"
"He's such a Mackeral Mike!"