The term "Barry larry" is used when someone talks to death about a particular subject, which can go on for some length of time. It often involves the "Barry Larrier" and someone he/she is "Barry larrying" with (one person or even a group). A song can also be sung to express the situation by joining both knuckles together horizontally accompanied by "I like to Barry Larry everything."
by magicbee April 12, 2011