if( has_term( array('Something'), 'product_cat', get_the_id() ) )
    $textafter = '( Ex. Moms )'; //add your text
    return $price . '' . $textafter . '';
}

if( has_term( array('Something'), 'product_cat', $product->get_id() ) )
    $textafter = '( Ex. Moms )'; //add your text
    return $price . '' . $textafter . '';
}