A Transition Metal is an element from the D block of the periodic table which forms at least one ion with an incomplete d sub–shell containing at least one electron.

Used ambiguously by the WJEC to annoy students, especially Sam Jones.

Glasses that change from normal glasses to sunglasses according to the amount of light in their location. Mainly worn by autistic, karate-fighting kids. Often accompanied by a head-strap to keep the glasses on in physical circumstances (eg. karate, bullying episodes, etc). Also worn by douchebags that like to wear sunglasses in the winter.

The notion that, when a woman (or man, depending on how you swing) has given you a blow job, and then has kissed you at some point in the future, you have then, by transmission, had your dick in your mouth. This also applies to when it was someone else's dick being sucked, and then transferred to you in the act of kissing the one who had sucked dick.

To take public transit without paying the fair.

a tan you gain while driving a transit van

A boyfriend that comes soon after a big break-up, who is more of a friend than a lover.

Any sort of breakup or disruption to domestic life, i.e. divorce.

Marital demise.