Tu Quoque
Avoiding having to engage with criticism by turning it back on the accuser—answering criticism with criticism.
The blue candidate accused the red candidate of committing the tu quoque fallacy. The red candidate responded by accusing the blue candidate of the same, after which ensued an hour of back-and-forth criticism with not much progress.
Redressing the fallacy
Yes, hypocrisy is undesirable, but the hypocrisy of others cannot be used as a justification for one’s own questionable or immoral behaviour.