Someone who tends to exaggerate their accomplishments to impress others. There may be a kernel of truth in their claims -- making it difficult to call 'bullshit' on them, not to mention the social risk involved in doing so -- but their exaggeration extends far beyond what might be considered remotely truthful.
More often than not, a dorky male with no real accomplishments to their name.
Jill: I've taken up learning the violin as a hobby.
Jack the embellisher: Oh, well I used to be a concert violinist.
Jack's friend: Lay it off dude, you learnt the violin for 8 weeks in primary school, and gave it up because you found it too hard.
Someone or something that bites your ankles.
To a postman, an ankle biter is often known as a dog.
To an adult, an ankle biter may be a toddler.
To hikers, an ankle biter is sometimes a tick.
And so on.
When a man will search for hours to find something that is laying out in the open on a table. Items are often easily found by a women.
Man: "I have been searching for hours for keys."
Woman: "You mean the ones sitting there on the coffee table?"
Man: "Where?"
Woman: "Right there in the middle of that table."
Man: "oh, must have been Male Pattern Blindness"