regular

#include <unistd.h>
int main(int argc, char *argv[]) {
    sleep(1);
    return 0;
}

Explanation: the program exits after one second.

void e( head ) {
    if ( head->tail )
        e( head->tail );
    free( head );
}

Explanation: deletes a linked list.

touch * && rm *

Explanation: “touch” all files, then if that is successful, delete them.

lover.clock.tick()
for girl in girls:
    assert(girl.clock.remaining<TIMEOUT)

Explanation: “ticking away from the ones we love, so many girls, so little time”.

while True:
    assert( self not in universe ), "http://maz.nu/wpaf"

Explanation: continuously test that “self” is not in the “universe” and raise an unexpected error if it is.

invincible=1;
blink(1);
setTimeout( function() {
    invincible=0;
    blink(0);
},1000 );

Explanation:

But I suddenly scream “Shit!”
Because my guy has just been hit
With my hits points indicator less than full

But it’s quite inconsequential
And my wrath will be torrential
For the following one second
I am in-vin-ci-ble