src/Translatable.php
public function getFallbackLocale()
    {
        if ($this->overrideFallbackLocale) {
            return $this->overrideFallbackLocale;
        }

        if (property_exists($this, 'fallbackLocale')) {
            return $this->fallbackLocale;
        }

        return TranslatableConfig::fallbackLocale();
    }
public function getFallbackLocale()
    {
        if ($this->overrideFallbackLocale) {
            return $this->overrideFallbackLocale;
        }

        if (property_exists($this, 'fallbackLocale')) {
            return $this->fallbackLocale;
        }

        return TranslatableConfig::fallbackLocale();
    }
Get current locale

@return string