Twiggez-vous? = Do you see?
VULGARISM OR CANT
buck up
»What he wants is bucking up; somebody to say to him, ‘Bravo! why, this is splendid’.» (They And I. 239. 3.)
The author.
To buck up is schoolboy slang (Winchester College) for to be glad, pleased, to cheer up.
The usual expression is: Oh, buck up!—a phrase which at Westminster School would have a different meaning, namely exert yourself; at Uppingham, to be bucked is to be tired. (Farmer & Henley.)