The short answer is, snare, symbols and kick pedal.
Some would also include hi-hat stand, others would also include symbol stands and drum stool.
You should also bring a bag with miscellaneous spares (washers, bolts, springs, etc.)
Normally at a gig with more than one band playing, the headlining band provide the backline; amps (bass n guitar) and the main body of the drum kit (bass drum, and most of the time, symbol stands) which are shared.
During the turnaround, each drummer puts on their own breakables.
Always have respect for other peoples equipment! Even if your under pressure and in a rush!
Most of the time you'll have around 15 minutes for the turnaround which is plenty of time.
The two main reasons for drummers bringing their own breakables are that most drummers want their own sound from the snare and symbols, which can vary dramatically.
The other is that, as the name suggests, breakables sometimes break.
As you've guessed by now the definition of breakables varies.
Most of the time (in the UK and Ireland anyway), it'll be;
snare, symbols and kick. Sometimes snare kick, symbols, stands and stool.
If in any doubt, ask whoever is organising the gig.
Oh, and don't forget your sticks (plus spares) and enjoy! :)
It is the metal part around the outside of the drum that is around the drum head.
Drums or main drums. they are the main beat source during music.
Bass drum. The bass drum in a trap set is also called the kick drum.
A bass drum hoop is the outer rim of the bass drum that sandwiches the bass drum head to the actual shell of the bass drum.
A drum roll usually plays on a snare. The drum you sit right behind it.