Here are some sarcastic words or phrases that might be appropriate to describe someone who is always eager to help others: 1. "Overzealous rescuee" - implies that this person is so enthusiastic about helping others that they become overwhelmed or even annoying. 2. "White knight complex" - means that this person has an overdeveloped sense of duty or exaggerated sense of heroism. 3. "Saint" or "nice guy" - uses a teasing tone to mean that this person is too perfect or selfless to be real. 4. "Martel's clone" - references the popular "our generation" advertising slogan, implying that this person is too awesome or enthusiastic. 5. "Humanitarian zealot" - This is a play on "workaholic" or "shopping enthusiast", meaning that this person has an unhealthy obsession with helping others. 6. "The world's most qualified candidate for a gold star" - a sarcastic way of saying that this person is seeking recognition or praise to the point of becoming a joke. 7. "Professional handrail" - means that this person spends more time helping others than focusing on their own life or needs. 8. “Over-interventionist Bertrand Russell” – Quote philosopher Bertrand Russell’s dedication to the public good to convey the sense that this person is overly concerned with the public good. Remember to be mindful of tone, context, and audience when using sarcasm, and make sure the comment is not perceived as truly hurtful or harshly critical.