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1.
A common Scottish term to insert at the awkward moment when you temporarily forget someone's name. Useful to avoid that occasional embarrassment.
Steve: Hi, Susan!
Susan: Hi . . . uhhhhhh . . . Steve! Sorry, I tartled there for a moment.
by lodedosdeensaladareal September 03, 2011
 
2.
An Irish term mainly from the North of Ireland

A "tartle" is the piece of shit that sticks to a cows ass. It can also refer to humans, as the piece of shit that balls up and stick to your ass hair when wiping.

Due to to it being stuck to your ass it remains close and follows you , so it is commonly used to refer to a hang-a-long or stalker that follows you everywhere.
Wow that chick is a real "tartle" she is following you everywhere.
by Poodart December 13, 2010