of, pertaining to, affected with, or caused by a toxin or poison: a toxic condition.
acting as or having the effect of a poison; poisonous: a toxic drug.
causing unpleasant feelings; harmful or malicious: a toxic boyfriend; toxic criticism.
pertaining to or noting debt that will probably not be repaid: toxic mortgages.
pertaining to or noting a financial instrument or other asset that has no value or an unknown value because there is no market for it: toxic mortgage-backed securities.
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and love comes back around again, it's a carousel, my friend