Noun. 1 A male goose
2. (slang) A look (used only in the expression to have a gander), originally Brit.
Gander as slang for look derives from early cockney rhyming slang (when it was still the slang of criminals). It refers to the stretching or bending of the neck of a male goose as he looks around. Actually, there is a verb to gander (mid 17th Century) which originally meant "to wander aimlessly or with a foolish air like that of a gander". It was only later that it took on the "look" meaning, and the noun gander that was formed from the verb means "a look or glance".
Suggested usage: ."Will you have a gander at my job application letter, and check it for spelling mistakes?"
Also used in the diminutive goosey
goosey Noun. A look. Abbreviated form of the title of the nursery rhyme Goosey Goosey Gander, making use of the word 'gander', being slang for a look.
e.g."Let's have a goosey at the timetable and work out which is the best train to get to London
Now I'm off to have a gander at my friends list.