"Лгушка" would mean "a little liar" ("лгать" is "to lie", "лжец"/"лгун" is "a liar", and "лгушка" is an incredibly cute way to say "a little liar", even though “officially” we use the word “лгунишка” for “a little liar")

Пробуждение мистера лягушки (Mr. Frog's awakening)

На утро после вечеринки (next morning after a party) мистер зелёная лягушка встал и увидел в небе птиц. «Куда меня занесло?» — промелькнула у него мысль. Переплыв озеро, он увидел свой дом. Там его ждала жена. Посмотрев на него, она спросила: «Дорогой, разве костюм клоуна удобен для утренних прогулок?»

Mr. Frog's Awakening

Next morning after a party Mr. Frog stood up and saw birds in the sky. “Where am I brought in?”—the thought in his mind flashed. Having a lake swam over, he saw his house. There his wife awaited. Looking at him, she asked: “Honey, I wonder if a clown  costume is convinient for one's morning walks?”. (I've tried to translate the word "разве", which has a lot of meanings, and here is similar to "is...?" or “I wonder if”, making the whole sentence sound less personal and more subtle. That's why I've used "for one's morning walks").

A clarification about the genders. First of all, grammatical genders are kinda excessive, they don't add much information to a sentence, they are more like a grammatical habit. And there are controversial situations like in this story. In such cases, we use feminine adjectives with feminine nouns, but if the actual gender is male, we add a "musculine" word like "мистер", "господин", etc. And conjugate the action verbs with this musculine term.

The cases are the separate story, I did not want to bore you with comprehensive explanations. Practice makes perfect. I guess it is better to discuss them with your language exchange partners. The story is long enough, and, IMO, explanations should be more interactive, so you could immediately ask a question if you don't understand smth before going to the next sentence.