"'n'" as an abbreviation for "and" as in "rock 'n' roll"

Solution 1:

The word "and" is frequently reduced to just 'n' in speech. For that reason, brand names, abbreviations, catchphrases, and other forms of informal, snappy language will often use the spelling 'n'. Examples that I've seen include:

• rock 'n' roll
• fish 'n' chips
• pork 'n' beans
• mac 'n' cheese
• Park 'n' Ride
• Cash 'n' Carry
• mom 'n' pop

Of course, most of these also exist with the full word and written out. In principle, any reasonably common phrase could be spelled this way if you wanted to, though it would be improper to do so in formal writing unless you're reproducing a brand name.