up for grabs(available for anyone who is willing to compete for it; переводится в зависимости контекста: The city parks contract is up for grabs again. – Снова открыт конкурс на уборку городских парков. • Stray kitten up for grabs! – Бездомный котенок ищет хозяина!)
have a good one!(To enjoy an event or occasion, especially a holiday or one's birthday. You're turning nineteen tomorrow? I hope you have a good one! VLZ_58)