Otherwise Known As...

Twins must have a bunch of nicknames, it's one of Murphy's Laws.  We have called the boys
Pete and Repeat

Hack and Slash

Cheech and Chong

Bert and Ernie

Tom and Jerry

Sigfried and Roy

Tweedledum and Tweedledee
Chip and Dale
the Gruesome Twosome

the Awesome Twosome

Phineas and Ferb

Peanut Butter and Jelly

Chunky and Monkey

Naughty and Naughtier