A stimulant or relaxant that one ingests or inhales before spending a holiday with relatives. Initially termed for a stiff drink but has evolved with the demands of progress to include anything that can positively alter your state. Best described as smooth and mellowing in it's desired effect. Softening sharp edges, get the pun? Relaxative.
1. Just before the whole clan family arrives we always take a break for a quick relaxative.
2. The inlaws can be demanding at the best of times and they don't drink, so my fiancee and I always leave time to park the car and walk up the street for a relaxative before we head inside for a sure to be grueling dinner.