• riger milk,
• figer milk,
• giger milk,
• yiger milk,
• 6iger milk,
• 5iger milk,
• tuger milk,
• tjger milk,
• tkger milk,
• toger milk,
• t9ger milk,
• t8ger milk,
• tifer milk,
• tiver milk,
• tiber milk,
• tiher milk,
• tiyer milk,
• titer milk,
• tigwr milk,
• tigsr milk

The adjective form of "tiger milk" would be "tigerish" or "tiger-like".

The plural form of "tiger milk" is "tiger milks"

The singular form of the word "tiger milk" does not exist since "tiger milk" is already a singular countable term.