ってば

1. 1Insists impatiently on a statement or request that the listener seems to be ignoring, often one already made before.Ex. 1
2. 2Expresses exasperation at having to repeat oneself, often paired with a complaint that the listener is not understanding.Ex. 2

Used in casual spoken Japanese among family, friends and close peers, typically when arguing, nagging or urging someone who isn't listening. It adds strong irritation or insistence to an otherwise plain statement, request or suggestion. Unlike とばかりに, which describes someone's manner in narration, ってば is the speaker's own direct remark to the listener.

• とばかりにN1「とばかりに」 is a written narrative device describing a character's unspoken thoughts, revealed only through actions and expressions; 「ってば」 is spoken language where the speaker themselves repeatedly stresses a point, urges someone, or scolds them. The two are not interchangeable.
• んだってN3「んだって」 relays information heard from others ('I heard that...'), and with rising intonation seeks confirmation from the listener; 「ってば」 expresses the speaker's own claim or dissatisfaction with an impatient tone, so they cannot be swapped. When a noun is the predicate, use 「なんだって」 or 「だってば」.
• だってN2「だって」 is used at the start of a sentence to offer an excuse or explain a reason, or attaches to nouns to mean 'even...'; 「ってば」 comes at the end of a sentence or after a person's name to stress a claim, show impatience, or scold playfully. They are not interchangeable; 「嫌だってば」 is だ + 「ってば」.
• ときたらN1「ときたら」 attaches only to nouns, introducing a topic for a strong evaluation—usually scolding, though it can also express admiration; it resembles 「ってば」 attached to a person's name, but 「ってば」 often carries affection. The sentence-final urging and emphasizing use of 「ってば」 cannot be replaced with 「ときたら」.
• くせにN3「くせに」 means 'even though... yet...' and criticizes someone whose words and actions don't match their status or circumstances, with a strongly negative nuance; 「ってば」 repeatedly stresses the speaker's own claim or scolds someone, often with affection. The two are not interchangeable.

んだって and sentence-final だって can report what someone else said, but they can also insist on the speaker's own point (違うんだって！, 本当だって！). ってば never reports hearsay and more strongly signals frustration that the point has been ignored or must be repeated. とばかりに describes someone's manner as if they were saying something, while ときたら and くせに criticize a person or their contradictory behavior rather than pressing the speaker's own statement.